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Selected Herbarium Specimen Details (188) Download

Family Name:Asteraceae
Currently Accepted Name:Pterocaulon pycnostachyum (Elliott) Michx. - Determined By: C. vanHoek, 2018
Locality:USA. Florida. Lafayette Co.: North Florida Methodist Youth Camp.
Reproductive State:Fruit
Collector:C. F. Caudle 5268
  with M. L. Gilbert, M. S. Tisdale
Date:13 Jun 1964
Accession No:303779
Image:303779.jpg
Family Name:Asteraceae
Currently Accepted Name:Pterocaulon pycnostachyum (Michx.) Elliott
Locality:USA. Florida. Glades Co.: Fisheating Creek Wildlife Management Area. 90 m E of C-731, 2.2 km S of the Highlands County line. 27º 0’ 48” N 81º 27’ 18” W
Habitat:Between baygall and flatwoods.
Reproductive State:Fertile
Collector:A. R. Franck 2059
Date:08 May 2010
Accession No:254181
Image:254181.jpg
Family Name:Asteraceae
Currently Accepted Name:Pterocaulon pycnostachyum (Michx.) Elliott
Locality:USA. Florida. Volusia Co.: Tomoka State Park. Johns Island; ca. 1 km E of the US 1 bridge at the Tomoka River, ca. 1 km NNE of the N terminus of Nova Road (C-5A) at US 1. 29º 18’ 25” N 81º 4’ 59” W
Description:Herb. Common
Habitat:Mesic flatwoods.
Reproductive State:Fertile
Collector:J. M. Kunzer 619
Date:11 Aug 2004
Accession No:253817
Image:253817.jpg
Family Name:Asteraceae
Currently Accepted Name:Pterocaulon pycnostachyum (Michx.) Elliott
Locality:USA. Florida. Highlands Co.: Avon Park Air Force Range. S of Kissimmee Road, ca. 1.2 mi. E of its junction with Ebersbach Road, on O.Q. Range. T33S, R30E, Sec. 8, SE¼ of NE¼ of NE¼. 28º 17’ 27” N -81º -24’ -25” W
Habitat:Wet depression in burnde mesic prairie.
Reproductive State:Fertile
Collector:C. vanHoek 520
  with B. Wargo
Date:28 Apr 1996
Accession No:252575
Image:252575.jpg
Family Name:Asteraceae
Currently Accepted Name:Pterocaulon pycnostachyum (Michx.) Elliott
Locality:USA. Florida. Highlands Co.: Lake June-in-Winter Scrub State Park. Bobcat Trail. T37S, R29E, Sec. 4, E½.
Habitat:Flatwoods.
Reproductive State:Fertile
Collector:A. Bishop LJ0172
Date:22 Oct 2002
Accession No:252336
Image:252336.jpg
Family Name:Asteraceae
Currently Accepted Name:Pterocaulon pycnostachyum (Michx.) Elliott
Locality:USA. Florida. DeSoto Co.: Deep Creek Preserve. W side of Peace River, ca. 8 km NE of Port Charlotte, ca. 4.5 km NE of the junction of I-75 and C-769. T39S, R23E, Sec. 33, NW¼. 26º 55’ 0” N -81º -55’ 0” W
Habitat:Mesic flatwoods.
Reproductive State:Fertile
Collector:A. R. Franck 1525
Date:23 Nov 2009
Accession No:252257
Image:252257.jpg
Family Name:Asteraceae
Currently Accepted Name:Pterocaulon pycnostachyum (Michx.) Elliott
Locality:USA. Florida. Polk Co.: Avon Park Air Force Range. Ca. 0.2 mi. E of Hard Luck Road at a point 0.65 mi. S of Roberts Road. T32S, R31E, Sec. 36, SE¼ of NW¼ of SW¼. 28º 2’ 13” N -82º -10’ -6” W
Habitat:Calcareous prairie ecotone.
Reproductive State:Fertile
Collector:C. vanHoek 913
  with B. Wargo
Date:25 Apr 1997
Accession No:251841
Image:251841.jpg
Family Name:Asteraceae
Currently Accepted Name:Pterocaulon pycnostachyum (Michx.) Elliott
Locality:USA. Florida. Pasco Co.: Starkey Wilderness Park. 2.5 mi. NNW of Odessa. T26S, R17E, Sec. 4, SW¼ of SE¼. 28º 11’ 38” N -82º -35’ -30” W
Habitat:Mesic flatwoods.
Reproductive State:Fertile
Collector:E. M. Ferguson 79
Date:02 May 2003
Accession No:251077
Image:251077.jpg
Family Name:Asteraceae
Currently Accepted Name:Pterocaulon pycnostachyum (Michx.) Elliott
Locality:USA. Florida. Manatee Co.: Powel Crosley Estate, 8374 North Tamiami Trail, on Sarasota Bay directly E of Sarasota-Bradenton International Airport. 27º 23’ 24” N 82º 33’ 54” W
Description:Shrub with a pendulous inflorescence or catkin with wind pollinated flowers [??]. 
Habitat:Sandhill.
Reproductive State:Fruit
Elevation:1 to 3 m
Collector:K. Chavez 3
Date:03 May 2000
Accession No:250577
Image:250577.jpg
Family Name:Asteraceae
Currently Accepted Name:Pterocaulon pycnostachyum (Michx.) Elliott
Locality:USA. Florida. Lee Co.: Koreshan State Historic Site. Burn zone 3 W. T46S, R25E, Sec. 33, SW¼ of NW¼ of SE¼ of NE¼ of NW¼.
Description:Erect, to 50 cm tall; common. 
Habitat:Ruderal area; mesic flatwoods.
Reproductive State:Fruit, Bud
Collector:S. Cole KS0042
Date:03 Jun 1994
Accession No:232579
Image:232579.jpg
Family Name:Asteraceae
Currently Accepted Name:Pterocaulon pycnostachyum (Michx.) Elliott
Locality:USA. Florida. Pinellas Co.: Brooker Creek Preserve. Ca. 5.5 mi. N of Oldsmar, ca. 1.5 mi. S of Tarpon Springs Road, W of powerline right-of-way, vicinity of Brooker Creek. T27S, R16E, Sec. 13, SE¼. 28º 2’ 3” N -82º -39’ -54” W
Habitat:Grassy area near edge of Brooker Creek.
Reproductive State:Bud
Collector:R. P. Wunderlin 10435
  with P. Dooris
Date:04 May 1994
Accession No:210372
Image:210372.jpg
Family Name:Asteraceae
Currently Accepted Name:Pterocaulon pycnostachyum (Michx.) Elliott - Determined By: R. P. Wunderlin, 1986
Determination History: Pterocaulon virgatum L. - Determined By: R. P. Wunderlin, 1976
Pterocaulon undulatum C. Mohr - Determined By: L. Pardue, 18-Feb-1968
Locality:USA. Florida. Collier Co.: Land development E of Lake Trafford. 26º 12’ 39” N -81º -48’ -24” W
Habitat:Roadside near shallow swamp.
Reproductive State:Bud, Flower
Collector:R. W. Long 2759
  with J. Utley, L. Pardue
Date:18 Feb 1968
Accession No:82283
Image:82283.jpg
Family Name:Asteraceae
Currently Accepted Name:Pterocaulon pycnostachyum (Michx.) Elliott
Locality:USA. Florida. Collier Co.: Collier-Seminole State Park. Burn Zone 7. T51S, R27E, Sec. 27. 26º 7’ 59” N -81º -28’ -59” W
Description:Forb up to 70 cm; occasional; whitish corollas, filiform, heads numerous, born in terminal spikes; wind - carried seeds. 
Habitat:Wet flatwoods.
Reproductive State:Bud, Flower
Collector:J. Weber CS0131
Date:27 Mar 1992
Accession No:208812
Image:208812.jpg
Family Name:Asteraceae
Currently Accepted Name:Pterocaulon pycnostachyum (Michx.) Elliott - Determined By: R. P. Wunderlin, 1986
Determination History: Pterocaulon virgatum (L.)
Locality:USA. Florida. Highlands Co.: Avon Park Bombing Range. 100 - 500 m NNW of the junction of Kissimmee Road and Old Bravo Road. T33S, R30E, Sec. 1. 28º 17’ 27” N -81º -24’ -25” W
Habitat:Turkey oak [Quercus laevis] scrub.
Reproductive State:Bud, Fruit
Collector:D. R. Lindsey 513
  with S. Upchurch
Date:15 May 1981
Accession No:168764
Image:168764.jpg
Family Name:Asteraceae
Currently Accepted Name:Pterocaulon pycnostachyum (Michx.) Elliott
Locality:USA. Florida. Santa Rosa Co.: Hurlburt Air Force Base. W side of the entrance road opposite the golf course. 26º 28’ 59” N -80º -6’ 0” W
Habitat:Low woods.
Reproductive State:Flower, Fruit
Collector:G. Wilhelm 10176
Date:31 May 1982
Accession No:169756
Image:169756.jpg
Family Name:Asteraceae
Currently Accepted Name:Pterocaulon pycnostachyum (Michx.) Elliott
Locality:USA. Florida. Pinellas Co.: Caladesi Island State Park. Burn Zone CI - 5 NE, near maritime hammock. T28S, R15E, Sec. 29 SE¼ of SE¼ of NW¼.
Description:Erect to 60 cm in height; heads greenish - white; in terminal spikes; achene pappus of capillary bristles. 
Habitat:Mesic flatwoods.
Reproductive State:Bud, Flower
Collector:S. Cole CI0019
  with J. Miller
Date:08 Apr 1994
Accession No:212642
Image:212642.jpg
Family Name:Asteraceae
Currently Accepted Name:Pterocaulon pycnostachyum (Michx.) Elliott
Locality:USA. Florida. Hillsborough Co.: Hillsborough River State Park. Burn zone HR - 4; along Park Drive. T27S, R21E, Sec. 8 NW¼ of NE¼ of SW¼ of SE¼. 27º 55’ 0” N -82º -21’ 0” W
Description:Erect to 50 cm in height; corollas whitish; heads in compact spikes; achene pappus of capillary bristles. 
Habitat:Mesic flatwoods.
Reproductive State:Fruit
Collector:K. Graham HR0059
Date:13 Jul 1994
Accession No:212801
Image:212801.jpg
Family Name:Asteraceae
Currently Accepted Name:Pterocaulon pycnostachyum (Michx.) Elliott - Determined By: R. P. Wunderlin, 1986
Determination History: Pterocaulon virgatum L. - Determined By: R. P. Wunderlin, 1976
Pterocaulon undulatum C. Mohr
Locality:USA. Florida. Lee Co.: Koreshan State Park. Homegrounds of Koreshan Unit on Estero Road, US 41. 26º 26’ 17” N -81º -48’ -24” W
Habitat:Flat sandy pineland and palmetto [Serenoa repens] association with Bejaria, Lyonia spp., Ilex glabra, Vaccinium, and Myrica; sbout trails and fire lane marginal to grove and landscaped grounds of exotics.
Reproductive State:Flower, Fruit
Collector:O. K. Lakela 26974
  with F. C. Craighead, C. Craighead
Date:20 Apr 1964
Accession No:59651
Image:59651.jpg
Family Name:Asteraceae
Currently Accepted Name:Pterocaulon pycnostachyum (Michx.) Elliott - Determined By: R. P. Wunderlin, 1986
Determination History: Pterocaulon virgatum L. - Determined By: R. P. Wunderlin, 1976
Pterocaulon undulatum C. Mohr
Locality:USA. Florida. Highlands Co.: C-731 just off US 27.
Habitat:Beside drainage ditch.
Reproductive State:Bud, Flower
Collector:R. Metzger 202
Date:29 Apr 1965
Accession No:74464
Image:74464.jpg
Family Name:Asteraceae
Currently Accepted Name:Pterocaulon pycnostachyum (Michx.) Elliott
Locality:USA. Florida. Highlands Co.: Avon Park Lake Estates. Altair Road near Xavier, 2.5 mi. WNW of Avon Park. T33S, R28E, Sec. 7.
Habitat:Sand pine [Pinus clausa], oak, and rosemary [Ceratiola ericoides] scrub. Archbold and Satalite [Satellite] white sands. Associate voucher for Crotalaria recurvistylis Delaney and Wunderlin.
Collector:K. R. DeLaney 1714
Date:25 May 1988
Accession No:196950
Image:196950.jpg
Family Name:Asteraceae
Currently Accepted Name:Pterocaulon pycnostachyum (Michx.) Elliott - Determined By: R. P. Wunderlin, 1986
Determination History: Pterocaulon virgatum L. - Determined By: R. P. Wunderlin, 1976
Locality:USA. Florida. Pasco Co.: T25[S], R19E, Sec. 30.
Description:Mostly in fruit. 
Habitat:Oak - pinewood with Serenoa repens, Vaccinium, Cephalanthus. In sandy openings.
Reproductive State:Fruit
Collector:O. K. Lakela 24275
  with G. M. Riegler
Date:16 Jun 1961
Accession No:36754
Image:36754.jpg
Family Name:Asteraceae
Currently Accepted Name:Pterocaulon pycnostachyum (Michx.) Elliott - Determined By: R. P. Wunderlin, 1986
Determination History: Pterocaulon virgatum L. - Determined By: R. P. Wunderlin, 1976
Pterocaulon undulatum C. Mohr
Locality:USA. Florida. Volusia Co.: 29º 3’ 48” N -81º -8’ -54” W
Habitat:Beside a sandy road.
Reproductive State:Bud, Flower
Collector:B. Ames s.n.
Date:24 Mar 1918
Accession No:54293
Image:54293.jpg
Family Name:Asteraceae
Currently Accepted Name:Pterocaulon pycnostachyum (Michx.) Elliott - Determined By: R. P. Wunderlin, 1986
Determination History: Pterocaulon virgatum L. - Determined By: R. P. Wunderlin, 1976
Pterocaulon undulatum C. Mohr
Locality:USA. Florida. Sarasota Co.: W of Myakka River State Park along FL 72. 27º 18’ 0” N -82º -16’ 0” W
Description:Frequent. 
Habitat:Flat pinelands and saw palmetto [Serenoa repens]. In dry soil.
Reproductive State:Bud, Flower
Collector:O. K. Lakela 25848
  with R. W. Long
Date:23 Apr 1963
Accession No:55082
Image:55082.jpg
Family Name:Asteraceae
Currently Accepted Name:Pterocaulon pycnostachyum (Michx.) Elliott - Determined By: R. P. Wunderlin, 1986
Determination History: Pterocaulon virgatum L. - Determined By: R. P. Wunderlin, 1976
Pterocaulon pycnostachyum C. Mohr
Locality:USA. Florida. Hillsborough Co.: SE of Tampa ca. 1 mi. N of the US 301 and FL 674 intersection. 27º 56’ 51” N -82º -27’ -30” W
Habitat:Open grassy field; formerly saw palmetto [Serenoa repens] - longleaf pine [Pinus palustris] land; seasonally wet.
Reproductive State:Flower, Fruit
Collector:J. D. Ray, Jr. 10086
  with O. Lakela, J. Patman
Date:24 Aug 1960
Accession No:22579
Image:22579.jpg
Family Name:Asteraceae
Currently Accepted Name:Pterocaulon pycnostachyum (Michx.) Elliott
Locality:USA. Florida. Charlotte Co.: Don Pedro State Recreation Area. Land Base, south side of Flatwoods. T42S, R20E, Sec. 3. 28º 58’ 0” N -82º -7’ 0” W
Habitat:Pine flatwoods.
Reproductive State:Flower, Fruit
Collector:S. W. Braem DP0160
Date:20 Mar 2000
Accession No:232686
Image:232686.jpg
Family Name:Asteraceae
Currently Accepted Name:Pterocaulon pycnostachyum (Michx.) Elliott
Locality:USA. Florida. Manatee Co.: Lake Manatee State Recreation Area. T34S, R20E, E½ of NW¼ of SW¼ of NE¼ Sec. 31. 27º 30’ 0” N -82º -16’ -59” W
Description:Erect to 75 cm; heads discoid, whitish, in expanded raceme; achene pappus of capillary bristles. 
Habitat:In ruderal area of picnic grounds.
Reproductive State:Fruit
Collector:S. Cole LM00142
Date:15 Jun 1995
Accession No:232528
Image:232528.jpg
Family Name:Asteraceae
Currently Accepted Name:Pterocaulon pycnostachyum (Michx.) Elliott - Determined By: R. P. Wunderlin, 1986
Determination History: Pterocaulon virgatum L. - Determined By: R. P. Wunderlin, 1976
Pterocaulon undulatum C. Mohr
Locality:USA. Florida. Seminole Co.: In pinelands near Slavia. 28º 37’ 59” N -81º -13’ 0” W
Description:Leaves white beneath; flowers white. 
Habitat:Pinelands.
Reproductive State:Bud, Flower
Collector:G. R. Cooley 7471
  with R. J. Eaton, J. D. Ray, Jr.
Date:02 May 1960
Accession No:18963
Image:18963.jpg
Family Name:Asteraceae
Currently Accepted Name:Pterocaulon pycnostachyum (Michx.) Elliott - Determined By: R. P. Wunderlin, 1986
Determination History: Pterocaulon virgatum L. - Determined By: R. P. Wunderlin, 1976
Pterocaulon undulatum C. Mohr
Locality:USA. Florida. Pasco Co.: 2.5 mi. N of Gowers Corner off US 41.
Description:Frequent. 
Habitat:Wet roadside margin of small cypress [Taxodium] pond.
Reproductive State:Flower
Collector:J. D. Ray, Jr. 9919
  with O. Lakela, J. Patman
Date:09 Aug 1960
Accession No:19568
Image:19568.jpg
Family Name:Asteraceae
Currently Accepted Name:Pterocaulon pycnostachyum (Michx.) Elliott - Determined By: R. P. Wunderlin, 1986
Determination History: Pterocaulon virgatum L. - Determined By: R. P. Wunderlin, 1976
Pterocaulon undulatum C. Mohr
Locality:USA. Florida. Highlands Co.: Ca. 5 mi. S of Childs. 27º 12’ 0” N -81º -19’ -59” W
Habitat:Escarpment of ancient sand dune area. Pinus clausa - Ceratiola scrub.
Reproductive State:Flower, Fruit
Collector:J. D. Ray, Jr. 9786
  with H. A. Gleason, R. J. Eaton
Date:25 Apr 1960
Accession No:20778
Image:20778.jpg
Family Name:Asteraceae
Currently Accepted Name:Pterocaulon pycnostachyum (Michx.) Elliott
Locality:USA. Florida. Leon Co.: Apalachicola National Forest. Near Silver Lake Road in northeastern part of Forest; W of Tallahassee. 29º 43’ 32” N -84º -58’ -59” W
Habitat:Open, sandy woods with Quercus laevis.
Reproductive State:Fruit
Collector:A. Parker 1796
Date:30 Oct 1983
Accession No:178634
Image:178634.jpg
Family Name:Asteraceae
Currently Accepted Name:Pterocaulon pycnostachyum (Michx.) Elliott - Determined By: R. P. Wunderlin, 1986
Determination History: Pterocaulon virgatum (L.) DC.
Locality:USA. Florida. Columbia Co.: Along FL 2, halfway between the Georgia state line and the Baker County line. T2N, R18E, Sec. 607[?], NE¼. 30º 46’ 59” N -86º -40’ 0” W
Habitat:Roadside ditch in weedy, recently logged pine flatwoods, and around edges of small cypress [Taxodium] head.
Reproductive State:Fruit
Collector:B. F. Hansen 10151
  with G. Robinson
Date:11 Jul 1984
Accession No:181030
Image:181030.jpg
Family Name:Asteraceae
Currently Accepted Name:Pterocaulon pycnostachyum (Michx.) Elliott - Determined By: R. P. Wunderlin, 1986
Determination History: Pterocaulon virgatum (L.) DC.
Locality:USA. Florida. Volusia Co.: Under powerline, 0.3 mi. W of I-95 on FL 40; ca. 3.5 mi. W of New Smyrna Beach. T17S, R33E, Sec. 21, SE¼ of NE¼. 30º 35’ 59” N -85º -40’ -40” W
Habitat:Pine flatwoods along road.
Reproductive State:Bud, Flower
Collector:B. F. Hansen 5620
  with D. Richardson
Date:18 May 1979
Accession No:140867
Image:140867.jpg
Family Name:Asteraceae
Currently Accepted Name:Pterocaulon pycnostachyum (Michx.) Elliott - Determined By: R. P. Wunderlin, 1986
Determination History: Pterocaulon virgatum (L.) DC.
Locality:USA. Florida. Citrus Co.: Crystal River, Golf View, 7 Rivers Golf Club. 26º 28’ 59” N -80º -6’ 0” W
Habitat:Roadside, open pine - oak woods.
Reproductive State:Bud, Flower
Collector:M. E. Schmid A-208
Date:21 Apr 1983
Accession No:179846
Image:179846.jpg
Family Name:Asteraceae
Currently Accepted Name:Pterocaulon pycnostachyum (Michx.) Elliott - Determined By: R. P. Wunderlin, 1986
Determination History: Pterocaulon virgatum (L.) DC.
Locality:USA. Florida. Lake Co.: Mount Plymouth. 28º 40’ 59” N -81º -31’ -59” W
Habitat:Oak forest.
Reproductive State:Flower, Fruit
Collector:R. F. Daubenmire s.n.
  with J. Daubenmire
Date:09 May 1976
Accession No:179790
Image:179790.jpg
Family Name:Asteraceae
Currently Accepted Name:Pterocaulon pycnostachyum (Michx.) Elliott - Determined By: R. P. Wunderlin, 1986
Determination History: Pterocaulon virgatum (L.) DC.
Locality:USA. Florida. Sumter Co.: N side of FL 44, 1 mi. WNW of I-75. T18S, R22E, Sec. 33.
Habitat:Badly disturbed sandhill.
Reproductive State:Fruit
Collector:R. P. Wunderlin 9658
  with B.F. Hansen, G. Robinson
Date:28 Jun 1984
Accession No:179566
Image:179566.jpg
Family Name:Asteraceae
Currently Accepted Name:Pterocaulon pycnostachyum (Michx.) Elliott - Determined By: R. P. Wunderlin, 1986
Determination History: Pterocaulon virgatum (L.) DC.
Locality:USA. Florida. Polk Co.: Avon Park Air Force Bombing Range; N side of Kissimmee Road, 0.5 mi. W of Old Bravo Road. T33S, R30E, Sec. 1. 28º 17’ 27” N -81º -24’ -25” W
Reproductive State:Flower
Collector:D. R. Lindsey 681
  with S. Upchurch
Date:29 May 1981
Accession No:168090
Image:168090.jpg
Family Name:Asteraceae
Currently Accepted Name:Pterocaulon pycnostachyum (Michx.) Elliott
Locality:USA. Florida. Marion Co.: FL 336, 0.8 mi. NW of junction with FL 40, ca. 5 mi. NW of Dunnellon. 29º 3’ 15” N -82º -28’ -14” W
Habitat:Sandy roadside.
Reproductive State:Immature Fruit
Collector:M. T. Strong 1664
Date:10 Aug 1998
Accession No:226175
Image:226175.jpg
Family Name:Asteraceae
Currently Accepted Name:Pterocaulon pycnostachyum (Michx.) Elliott
Locality:USA. Florida. Sumter Co.: Along FL 44, 0.2 mi. SE of FL 44A, 2.5 mi. W of Wildwood. 28º 51’ 54” N -82º -2’ -20” W
Habitat:Roadside, bordering dry oak forest.
Reproductive State:Flower
Collector:M. T. Strong 1908
Date:03 Jun 1999
Accession No:226005
Image:226005.jpg
Family Name:Asteraceae
Currently Accepted Name:Pterocaulon pycnostachyum (Michx.) Elliott
Locality:USA. Florida. Miami-Dade Co.: Nixon Smiley (Tamiami) Pineland Preserve. N side of SW 128th Street, E side of SW 137th Avenue, just E of Tamiami Airport. 25º 45’ 31” N -80º -23’ -54” W
Habitat:Rock pineland of Miami oolite limestone with pockets of sand.
Reproductive State:Fruit
Collector:C. L. McCartney Jr. 62
Date:25 May 1996
Accession No:225834
Image:225834.jpg
Family Name:Asteraceae
Currently Accepted Name:Pterocaulon pycnostachyum (Michx.) Elliott
Locality:USA. Florida. Hillsborough Co.: Balm-Boyette Tract, 2.9 mi. SSW of Boyette. T31S, R21E, Sec. 18, SE¼ of SE¼. 27º 49’ 0” N -82º -13’ 0” W
Reproductive State:Bud, Flower
Collector:S. Landry s.n.
  with C. Vandaveer
Date:27 Jun 1995
Accession No:225368
Image:225368.jpg
Family Name:Asteraceae
Currently Accepted Name:Pterocaulon pycnostachyum (Michx.) Elliott
Locality:USA. Florida. Miami-Dade Co.: Ned Glenn Pineland Preserve; SW 188th Street and 87th Avenue. 25º 35’ 27” N 80º 20’ 1” W
Description:Uncommon. 
Habitat:Sand pockets in pine rockland.
Reproductive State:Fruit
Collector:K. A. Bradley 1725
Date:21 May 1998
Accession No:223308
Image:223308.jpg
Family Name:Asteraceae
Currently Accepted Name:Pterocaulon pycnostachyum (Michx.) Elliott
Locality:USA. Florida. Hillsborough Co.: On FL 574, E of US 301, N of highway.
Habitat:Oak - saw palmetto [Serenoa repens] sand scrub.
Reproductive State:Bud, Fruit
Collector:J.M. Carlton s.n.
Date:28 Jun 1977
Accession No:162554
Image:162554.jpg
Family Name:Asteraceae
Currently Accepted Name:Pterocaulon pycnostachyum (Michx.) Elliott - Determined By: R. P. Wunderlin, 1986
Determination History: Pterocaulon virgatum (L.) DC.
Locality:USA. Florida. Highlands Co.: 0.5 mi. E of Hicoria on Old FL 17. T38S, R30E, Sec. 20, NW¼ of SW¼. 27º 9’ 0” N -81º -21’ 0” W
Habitat:Wet prairie.
Reproductive State:Flower, Fruit
Collector:B. F. Hansen 6116
  with D. Richardson
Date:26 Jul 1979
Accession No:145216
Image:145216.jpg
Family Name:Asteraceae
Currently Accepted Name:Pterocaulon pycnostachyum (Michx.) Elliott
Locality:USA. Florida. Hillsborough Co.: Flatwoods Park, 1.5 mi. WNW of Morris Bridge; ca. 7 mi. E of Lutz. T27S, R20E, Sec. 30, SW¼. 28º 9’ 4” N -82º -27’ -41” W
Habitat:Pine flatwoods along edges of Lythrum marsh.
Reproductive State:Flower
Collector:R. P. Wunderlin 10638
Date:22 Oct 1994
Accession No:221267
Image:221267.jpg
Family Name:Asteraceae
Currently Accepted Name:Pterocaulon pycnostachyum (Michx.) Elliott - Determined By: B. F. Hansen, 1993
Determination History: Pterocaulon virgatum (L.) DC.
Locality:USA. Florida. Manatee Co.: South Fork State Park. T33S, R21E, Sec. 18.
Description:Erect to 70 cm tall; common. 
Habitat:Xeric hammock.
Reproductive State:Bud, Flower
Collector:R. Owens SF0095
Date:16 May 1992
Accession No:207815
Image:207815.jpg
Family Name:Asteraceae
Currently Accepted Name:Pterocaulon pycnostachyum (Michx.) Elliott - Determined By: B. F. Hansen, Sep 2001
Determination History: Pterocaulon virgatum (L.) DC. - Determined By: B. K. Holst
Locality:USA. Florida. Sarasota Co.: Indianola Property, N of Osprey, W of US 41, between South Holiday Drive and Springfield Drive. 27º 14’ 4” N 82º 30’ 19” W
Habitat:Coastal scrub in open pineland area.
Reproductive State:Flower
Elevation:0 to 10 m
Collector:M. E. Nolan 40
Date:22 Apr 1997
Accession No:230129
Image:230129.jpg
Family Name:Asteraceae
Currently Accepted Name:Pterocaulon pycnostachyum (Michx.) Elliott - Determined By: R. P. Wunderlin, 1986
Determination History: Pterocaulon virgatum (L.) DC.
Locality:USA. Florida. DeSoto Co.: 7 mi. on C-761 from FL 72.
Habitat:Scrub - palmetto [Serenoa repens].
Reproductive State:Fruit
Collector:A. Fulton 194
Date:16 Oct 1978
Accession No:143639
Image:143639.jpg
Family Name:Asteraceae
Currently Accepted Name:Pterocaulon pycnostachyum (Michx.) Elliott - Determined By: B. F. Hansen, Oct 2024
Determination History: Pterocaulon undulatum C. Mohr
Locality:USA. Florida. Polk Co.: Scott Lake, Lakeland.
Habitat:Scrub.
Reproductive State:Flower
Collector:C. F. Caudle 1246
  with M.L.Gilbert, M.S. Tisdale
Date:30 Jul 1962
Accession No:306350
Family Name:Asteraceae
Currently Accepted Name:Pterocaulon pycnostachyum (Michx.) Elliott - Determined By: B. F. Hansen, Oct 2024
Determination History: Pterocaulon undulatum C. Mohr
Locality:USA. Florida. Polk Co.: Panther Point.
Reproductive State:Flower
Collector:C. F. Caudle 862
  with M.L.Gilbert, M.S. Tisdale
Date:09 Jul 1962
Accession No:306348
Family Name:Asteraceae
Currently Accepted Name:Pterocaulon pycnostachyum (Michx.) Elliott - Determined By: B. F. Hansen, Oct 2024
Determination History: Pterocaulon undulatum C. Mohr
Locality:USA. Florida. Polk Co.: Lithia Road.
Reproductive State:Flower
Collector:C. F. Caudle 711
  with M.L.Gilbert, M.S. Tisdale
Date:22 Jun 1962
Accession No:306341
Family Name:Asteraceae
Currently Accepted Name:Pterocaulon pycnostachyum (Michx.) Elliott - Determined By: B. F. Hansen, Oct 2024
Determination History: Pterocaulon undulatum C. Mohr
Locality:USA. Florida. Polk Co.: Dean's Still Road.
Reproductive State:Flower, Fruit
Collector:C. F. Caudle 3197
  with M.L.Gilbert, M.S. Tisdale
Date:01 Jul 1963
Accession No:306342
Family Name:Asteraceae
Currently Accepted Name:Pterocaulon pycnostachyum (Michx.) Elliott - Determined By: B. F. Hansen, Oct 2024
Determination History: Pterocaulon undulatum C. Mohr
Locality:USA. Florida. Polk Co.: Kissengen Springs.
Reproductive State:Flower
Collector:C. F. Caudle 1904
  with M.L.Gilbert, M.S. Tisdale
Date:30 May 1963
Accession No:306351
Family Name:Asteraceae
Currently Accepted Name:Pterocaulon pycnostachyum (Michx.) Elliott - Determined By: B. F. Hansen, Oct 2024
Determination History: Pterocaulon undulatum C. Mohr
Locality:USA. Florida. Polk Co.: Orange Park Mine #3.
Habitat:Turkey oak [Quercus laevis] woods.
Reproductive State:Flower
Collector:C. F. Caudle 308
  with M.L.Gilbert, M.S. Tisdale
Date:15 Jun 1962
Accession No:306344
Family Name:Asteraceae
Currently Accepted Name:Pterocaulon pycnostachyum (Michx.) Elliott - Determined By: B. F. Hansen, Oct 2024
Determination History: Pterocaulon undulatum C. Mohr
Locality:USA. Florida. Polk Co.: Orange Park Mine #6, Lakeland.
Habitat:Turkey oak [Quercus laevis] area.
Reproductive State:Bud
Collector:C. F. Caudle 1015
  with M.L.Gilbert, M.S. Tisdale
Date:21 May 1963
Accession No:306345
Family Name:Asteraceae
Currently Accepted Name:Pterocaulon pycnostachyum (Michx.) Elliott - Determined By: B. F. Hansen, Oct 2024
Determination History: Pterocaulon undulatum C. Mohr
Euthamia caroliniana (L.) Greene ex Porter & Britton - Determined By: B. F. Hansen, Oct 2024
Solidago microcephala (Greene) Bush
Euthamia minor (Michx.) Greene
Locality:USA. Florida. Polk Co.: Orange Park Mine #4.
Reproductive State:Bud
Collector:C. F. Caudle 7
  with M.L.Gilbert, M.S. Tisdale
Date:19 Sep 1962
Accession No:306361
Family Name:Asteraceae
Currently Accepted Name:Pterocaulon pycnostachyum (Michx.) Elliott - Determined By: B. F. Hansen, Oct 2024
Determination History: Pterocaulon undulatum C. Mohr
Locality:USA. Florida. Polk Co.: Marion Creek.
Reproductive State:Flower
Collector:C. F. Caudle 4060
  with M.L.Gilbert, M.S. Tisdale
Date:23 Jul 1964
Accession No:306340
Family Name:Asteraceae
Currently Accepted Name:Pterocaulon pycnostachyum (Michx.) Elliott - Determined By: B. F. Hansen, Oct 2024
Determination History: Pterocaulon undulatum C. Mohr
Locality:USA. Florida. Polk Co.: Marion Creek Road.
Habitat:Scrub.
Reproductive State:Flower
Collector:C. F. Caudle 2649
  with M.L.Gilbert, M.S. Tisdale
Date:13 Jun 1963
Accession No:306337
Family Name:Asteraceae
Currently Accepted Name:Pterocaulon pycnostachyum (Michx.) Elliott - Determined By: B. F. Hansen, Oct 2024
Determination History: Pterocaulon undulatum C. Mohr
Locality:USA. Florida. Polk Co.: Orange Park Mine #2, Lakeland.
Reproductive State:Flower
Collector:C. F. Caudle 209
  with M.L.Gilbert, M.S. Tisdale
Date:14 Jun 1962
Accession No:306353
Family Name:Asteraceae
Currently Accepted Name:Pterocaulon pycnostachyum (Michx.) Elliott - Determined By: B. F. Hansen, Oct 2024
Determination History: Pterocaulon undulatum C. Mohr
Locality:USA. Florida. Polk Co.: Marion Creek Road.
Habitat:Scrub.
Reproductive State:Fertile
Collector:C. F. Caudle 2622
  with M.L.Gilbert, M.S. Tisdale
Date:13 Jun 1963
Accession No:306355
Family Name:Asteraceae
Currently Accepted Name:Pterocaulon pycnostachyum (Michx.) Elliott - Determined By: B. F. Hansen, Oct 2024
Determination History: Pterocaulon undulatum C. Mohr
Locality:USA. Florida. Highlands Co.: Avon Park Bombing Range. Burned Hammock.
Reproductive State:Fertile
Collector:C. F. Caudle 1332
  with M.L.Gilbert, M.S. Tisdale
Date:27 May 1963
Accession No:306352
Family Name:Asteraceae
Currently Accepted Name:Pterocaulon pycnostachyum (Michx.) Elliott - Determined By: B. F. Hansen, Oct 2024
Determination History: Pterocaulon undulatum C. Mohr
Locality:USA. Florida. Highlands Co.: Avon Park Bombing Range. Fort Kissimmee.
Reproductive State:Fruit
Collector:C. F. Caudle 1451
  with M.L.Gilbert, M.S. Tisdale
Date:27 May 1963
Accession No:306349
Family Name:Asteraceae
Currently Accepted Name:Pterocaulon pycnostachyum (Michx.) Elliott - Determined By: B. F. Hansen, Oct 2024
Determination History: Pterocaulon undulatum C. Mohr
Locality:USA. Florida. Lee Co.: Half-Way Pond Ranch, Fort Myers.
Reproductive State:Fertile
Collector:C. F. Caudle 3907
  with M.L.Gilbert, M.S. Tisdale
Date:19 Jul 1963
Accession No:306343
Family Name:Asteraceae
Currently Accepted Name:Pterocaulon pycnostachyum (Michx.) Elliott - Determined By: B. F. Hansen, Oct 2024
Determination History: Pterocaulon undulatum C. Mohr
Locality:USA. Florida. Pasco Co.: FL 54.
Habitat:Pine flatwoods.
Reproductive State:Flower
Collector:C. F. Caudle 3056
  with M.L.Gilbert, M.S. Tisdale
Date:27 Jun 1963
Accession No:306338
Family Name:Asteraceae
Currently Accepted Name:Pterocaulon pycnostachyum (Michx.) Elliott
Locality:USA. Florida. Palm Beach Co.: Frenchman's Forest Natural Area. 26º 51’ 30” N 80º 4’ 46” W
Description:3 plants seen; flowers white.. 
Habitat:Open area in scrubby flatwoods, between Sabal palmetto and Quercus virginiana.
Reproductive State:Fertile
Collector:K. Rigano s.n.
  with C.J. McCartney
Date:09 Apr 2024
Accession No:306261
Family Name:Asteraceae
Currently Accepted Name:Pterocaulon pycnostachyum (Michx.) Elliott - Determined By: D. S. Pennys, Apr 2002
Locality:USA. Florida. Marion Co.: Ocala National Forest. Riverside Island; area NE of National Forest Road 88 and National Forest Road 75. 29º 25’ 28” N 81º 48’ 48” W
Description:Common herb to 50 cm. 
Habitat:Longleaf pine [Pinus palustris] - wiregrass [Aristida] area.
Reproductive State:Bud
Collector:D. Penneys 1477
Date:13 Apr 2002
Accession No:304448
Family Name:Asteraceae
Currently Accepted Name:Pterocaulon pycnostachyum (Michx.) Elliott - Determined By: C. vanHoek, 2021
Locality:USA. Florida. Hardee Co.: FL 17, Buchanan.
Reproductive State:Fertile
Collector:C. F. Caudle 5016
  with M.L. Gilbert, M.S. Tisdale
Date:27 May 1964
Accession No:302351
Image:302351.jpg
Family Name:Asteraceae
Currently Accepted Name:Pterocaulon pycnostachyum (Michx.) Elliott - Determined By: C. vanHoek, 2021
Locality:USA. Florida. Henderson Co.: South Florida Methodist Youth Camp, FL 78.
Reproductive State:Fertile
Collector:C. F. Caudle 5002
  with M.L. Gilbert, M.S. Tisdale
Date:27 May 1964
Accession No:302352
Image:302352.jpg
Family Name:Asteraceae
Currently Accepted Name:Pterocaulon pycnostachyum (Michx.) Elliott
Locality:U.S.. Florida. Hillsborough Co.: Blackwater Creek Nature Preserve, Patrinostro Road off FL 39, Plant City. 28º 8’ 56” N 82º 9’ 39” W
Habitat:Edge of hiking trail in open savanna, pine flatwods.
Reproductive State:Fertile
Collector:K. S. Alvarado 38(2)
Date:26 May 2020
Accession No:302285
Image:302285.jpg
Family Name:Asteraceae
Currently Accepted Name:Pterocaulon pycnostachyum (Michx.) Elliott
Locality:USA. Florida. Hillsborough Co.: Blackwater Creek Nature Preserve. Patrinostro Road off FL 39, Plant City. 28º 8’ 56” N 82º 9’ 39” W
Habitat:Edge of hiking trail in open savanna; pine flatwoods.
Reproductive State:Fruit
Collector:K. S. Alvarado 038
Date:26 May 2020
Accession No:300877
Image:300877.jpg
Family Name:Asteraceae
Currently Accepted Name:Pterocaulon pycnostachyum (Michx.) Elliott - Determined By: B. F. Hansen, Dec 2019
Determination History: Pterocaulon undulatum C. Mohr
Locality:USA. Florida. Highlands Co.: 27º 20’ 36” N -81º -20’ -27” W
Description:Stem and petiola widely winged; leaf undersides densely white wooly pubescent, the upper sides a dark green; flower heads white. 
Reproductive State:Fertile
Collector:M. G. Ford 84
Date:May 1964
Accession No:300619
Image:300619.jpg
Family Name:Asteraceae
Currently Accepted Name:Pterocaulon pycnostachyum (Michx.) Elliott
Locality:USA. Florida. Hillsborough Co.: Cypress Creek Preserve. 28º 7’ 51” N 82º 23’ 43” W
Habitat:Flatwoods.
Reproductive State:Fruit
Collector:J. R. Campbell 288
  with S. Dickman, A. Franck, S. Bowman
Date:21 Jun 2016
Accession No:296160
Image:296160.jpg
Family Name:Asteraceae
Currently Accepted Name:Pterocaulon pycnostachyum (Michx.) Elliott - Determined By: B. F. Hansen, Oct 2017
Determination History: Pterocaulon undulatum C. Mohr
Locality:USA. Florida. Collier Co.: Marco Island, 10 mi. W of US 41 on FL 92. 25º 58’ 0” N -81º -43’ 0” W
Description:Herb with four-sided stem; terminal head of flowers greenish white. 
Habitat:Area of acid sandy soil.
Reproductive State:Fertile
Collector:N. Woessner 68
Date:Mar 1964
Accession No:295096
Image:295096.jpg
Family Name:Asteraceae
Currently Accepted Name:Pterocaulon pycnostachyum (Michx.) Elliott
Locality:USA. Florida. Gulf Co.: Along FL 22 at Kemp Cemetery Road. 30º 8’ 41” N 85º 18’ 5” W
Habitat:Open pine woods.
Reproductive State:Fertile
Collector:W. D. Longbottom 25075
  with D.H. Williams
Date:20 May 2016
Accession No:293925
Image:293925.jpg
Family Name:Asteraceae
Currently Accepted Name:Pterocaulon pycnostachyum (Michx.) Elliott - Determined By: B. F. Hansen, May 2017
Determination History: Pterocaulon undulatum C. Mohr
Locality:USA. Florida. Highlands Co.: US 27 below Sebring. 27º 29’ 44” N -81º -26’ -27” W
Habitat:Between drainage ditch and pineland.
Reproductive State:Fertile
Collector:J. L. Behler 49
Date:07 May 1966
Accession No:290980
Image:290980.jpg
Family Name:Asteraceae
Currently Accepted Name:Pterocaulon pycnostachyum (Michx.) Elliott - Determined By: B. F. Hansen, Apr 2017
Determination History: Pterocaulon undulatum (Walter) C. Mohr
Locality:USA. Florida. Palm Beach Co.: US 27, 75 mi. N of Miami. 25º 46’ 27” N -80º -11’ -37” W
Description:Low growing herb with thick black roots; stems wooly and winged; leaves alternate, undulate, hairy on undersides; flowers in clusters, green to white. 
Habitat:Roadside.
Reproductive State:Fruit
Collector:H. W. Severance 74
Date:14 May 1964
Accession No:292305
Image:292305.jpg
Family Name:Asteraceae
Currently Accepted Name:Pterocaulon pycnostachyum (Michx.) Elliott - Determined By: B. F. Hansen, Mar 2017
Determination History: Pterocaulon undulatum C. Mohr
Locality:USA. Florida. Highlands Co.: W side of US 27, 10 mi. S of Sebring. 27º 29’ 44” N -81º -26’ -27” W
Description:Stem 1-2 ft. long, winged; leaves oblong and narrow; flower head whitish, the flowers crowded in a thick spike 1-4 in. long. 
Reproductive State:Fertile
Collector:R. E. Roberts 49
Date:May 1966
Accession No:291973
Image:291973.jpg
Family Name:Asteraceae
Currently Accepted Name:Pterocaulon pycnostachyum (Michx.) Elliott - Determined By: B. F. Hansen, Feb 2017
Determination History: Pterocaulon undulatum C. Mohr
Locality:USA. Florida. Glades Co.: US 27.
Description:Stems whinged, underside of wings white; underside of leaves white, midribs white; white tomentose in all parts except scattered hairy upper surface of leaves. 
Habitat:Pineland.
Reproductive State:Fertile
Collector:P. Silverstone 149
Date:14 May 1964
Accession No:289164
Image:289164.jpg
Family Name:Asteraceae
Currently Accepted Name:Pterocaulon pycnostachyum (Michx.) Elliott
Locality:USA. Florida. Nassau Co.: FL 200/A1A (Buccaneer Trail), E of its junction with I-95, along Mentoria Road. 30º 37’ 9” N 81º 38’ 42” W
Habitat:Edge of woods along roadside.
Reproductive State:Fertile
Collector:W. D. Longbottom 24748
Date:15 May 2016
Accession No:286747
Image:286747.jpg
Family Name:Asteraceae
Currently Accepted Name:Pterocaulon pycnostachyum (Michx.) Elliott
Locality:USA. Florida. Hillsborough Co.: Lake Dan and Lake Frances Nature Preserve; 0.19 km S of the Pasco County line, 0.19 km E of teh Pinellas County line, 3.51 km N of FL 582, Odessa. 28º 10’ 17” N 82º 38’ 4” W
Habitat:Wet flatwoods.
Reproductive State:Fruit
Collector:A. Farid 46
  with A.R. Franck
Date:01 Jul 2015
Accession No:280432
Image:280432.jpg
Family Name:Asteraceae
Currently Accepted Name:Pterocaulon pycnostachyum (Michx.) Elliott
Locality:USA. Florida. Orange Co.: Rock Springs Run State Reserve. E of Spear Scrub. 28º 46’ 19” N 81º 26’ 53” W
Habitat:Pine flatwoods.
Reproductive State:Fertile
Collector:R. Mejeur 960
  with G. Walker
Date:08 Jun 2002
Accession No:275940
Image:275940.jpg
Family Name:Asteraceae
Currently Accepted Name:Pterocaulon pycnostachyum (Michx.) Elliott
Locality:USA. Florida. Hardee Co.: Paynes Creek Historic State Park. Ca. 2 km SE of Bowling Green. 27º 37’ N 81º 48’ W
Habitat:Scrub.
Reproductive State:Fruit
Collector:P. J. Simoes 6
  with A.R. Franck
Date:23 May 2014
Accession No:275821
Image:275821.jpg
Family Name:Asteraceae
Currently Accepted Name:Pterocaulon pycnostachyum (Michx.) Elliott
Locality:USA. Florida. Orange Co.: Tosohatchee Wildlife Management Area.
Reproductive State:Fertile
Collector:K. Richards 5
Date:13 Jul 2013
Accession No:275478
Image:275478.jpg
Family Name:Asteraceae
Currently Accepted Name:Pterocaulon pycnostachyum (Michx.) Elliott
Locality:USA. Florida. Lake Co.: Rock Springs Run State Reserve. W side of the entrance road,c a. 0.75 mi. S of FL 46. 28º 48’ 5” N 81º 27’ 7” W
Habitat:Sandhill system, with Pinus palustris, Aristida stricta, and other sandhhill herbs.
Reproductive State:Fruit
Collector:R. Mejeur 863
Date:28 May 2001
Accession No:275389
Image:275389.jpg
Family Name:Asteraceae
Currently Accepted Name:Pterocaulon pycnostachyum (Michx.) Elliott - Determined By: A. R. Franck, 08-Jul-2014
Determination History: Pterocaulon virgatum (L.) DC.
Locality:USA. Florida. Duval Co.: Between Ridge Boulevard and Ribault Drive.
Habitat:Scrub oak forest; sandy soil.
Reproductive State:Fertile
Notes:From Eckerd College Herbarium.
Collector:M. R. Blake s.n.
Date:29 May 1975
Accession No:274220
Image:274220.jpg
Family Name:Asteraceae
Currently Accepted Name:Pterocaulon pycnostachyum (Michx.) Elliott
Locality:USA. Florida. Hillsborough Co.: Lower Green Swamp Preserve. Ca. 1.5 mi. NNW of the Knights Griffin Road bridge over Itchepackesassa Creek, ca. 3.5 mi. WSW of the junction of Deeson Road and C-35A. T27S, R22E, Sec. 35, E½. 28º 4’ 0” N -82º -7’ -59” W
Habitat:Flatwoods restoration area.
Reproductive State:Fertile
Collector:R. Chicone 1072
Date:20 Jun 2013
Accession No:271480
Image:271480.jpg
Family Name:Asteraceae
Currently Accepted Name:Pterocaulon pycnostachyum (Michx.) Elliott
Locality:USA. Florida. Baker Co.: C-228 (Maxville-Macclenny Road), McPherson. 30º 13’ 59” N 82º 4’ 10” W
Habitat:Roadside.
Reproductive State:Fertile
Collector:W. D. Longbottom 17057
  with D.H. Williams
Date:18 Apr 2012
Accession No:265632
Image:265632.jpg
Family Name:Asteraceae
Currently Accepted Name:Pterocaulon pycnostachyum (Michx.) Elliott
Locality:USA. Florida. Sumter Co.: ALong FL 44, E of Buena Vista Boulevard. 28º 50’ 19” N 82º 51” W
Habitat:Roadside.
Reproductive State:Fertile
Collector:W. D. Longbottom 17134
  with D.H. Williams
Date:20 Apr 2012
Accession No:265326
Image:265326.jpg
Family Name:Asteraceae
Currently Accepted Name:Pterocaulon pycnostachyum (Michx.) Elliott
Locality:USA. Florida. St. Lucie Co.: I-95 rest area. 27º 27’ 50” N 80º 25’ 16” W
Habitat:Cutover, disturbed pine flatwoods.
Reproductive State:Fruit
Collector:S. Myers 645
Date:21 Jul 2012
Accession No:264582
Image:264582.jpg
Family Name:Asteraceae
Currently Accepted Name:Pterocaulon pycnostachyum (Michx.) Elliott
Locality:USA. Florida. St. Johns Co.: Dupont Center; along the N side of FL 206, between US 1/FL 5 (Dixie Highway) and I-95, W of the Florida East Coast Railroad tracks. 29º 45’ 22” N 81º 29’ 37” W
Habitat:Cleared area along railroad.
Reproductive State:Fruit
Collector:W. D. Longbottom 16417
  with D.H. Williams
Date:29 Sep 2011
Accession No:263514
Image:263514.jpg
Family Name:Asteraceae
Currently Accepted Name:Pterocaulon pycnostachyum (Michx.) Elliott - Determined By: X. de Seguin des Hons
Locality:USA. Florida. Brevard Co.: South Lake Conservation Area, Mims. 410 ft. NW of the NW corner of the retention pond between Dairy Road and the Conservation Area. T21S, R34E, Sec. 25. 28º 39’ 54” N -80º -50’ -41” W
Habitat:Scrubby flatwoods.
Reproductive State:Fertile
Collector:P. Schlueb s.n.
  with X. de Seguin des Hons
Date:12 May 2007
Accession No:260924
Image:260924.jpg
Family Name:Asteraceae
Currently Accepted Name:Pterocaulon pycnostachyum (Michx.) Elliott
Locality:USA. Florida. Martin Co.: Jonathan Dickinson State Park. NW area.
Habitat:Wet flatwoods.
Reproductive State:Fruit
Collector:R. O. Woodbury s.n.
  with R. Roberts
Date:Jun 1988
Accession No:260402
Image:260402.jpg
Family Name:Asteraceae
Currently Accepted Name:Pterocaulon pycnostachyum (Michx.) Elliott
Locality:USA. Florida. Hardee Co.: Paynes Creek Historic State Park. Near fort site. T33S, R25E, Sec. 7, SW¼ of SW¼ of NW¼.
Habitat:Scrub.
Reproductive State:Fruit
Collector:A. Bishop PC0066
  with K. Alvarez
Date:29 Jun 2004
Accession No:260019
Image:260019.jpg
Family Name:Asteraceae
Currently Accepted Name:Pterocaulon pycnostachyum (Michx.) Elliott - Determined By: K. M. Meyer, 2007
Locality:USA. Florida. Liberty Co.: Apalachicola National Forest. Apalachicola Ranger District; 2.4 mi. E of Forest Service Road 13, off of FL 65, near Twin Poles (hunt camp). 30º 8’ 22” N 84º 55’ 58” W
Description:Perennial; stem white and green winged; flowers white, pubescent. 
Habitat:Pine forest.
Reproductive State:Fertile
Elevation:22 m
Collector:K. M. Meyer 60
  with A. Townesmith
Date:09 May 2007
Accession No:257267
Image:257267.jpg
Family Name:Asteraceae
Currently Accepted Name:Pterocaulon pycnostachyum (Michx.) Elliott
Locality:USA. Florida. Glades Co.: Fisheating Creek Wildlife Management Area. 1.1 km E of US 27, 0.45 km N of Fisheating Creek. 26º 56’ 19” N 81º 18’ 19” W
Habitat:Dry prairie.
Reproductive State:Fertile
Collector:A. R. Franck 2195
Date:30 May 2010
Accession No:254648
Image:254648.jpg
Family Name:Asteraceae
Currently Accepted Name:Pterocaulon pycnostachyum (Michx.) Elliott - Determined By: R. P. Wunderlin, 1986
Determination History: Pterocaulon virgatum (L.) DC.
Locality:USA. Florida. Lee Co.: North Fort Myers, Tamiami Village, powerline N of Clubhouse. 25º 45’ 31” N -80º -23’ -54” W
Reproductive State:Bud
Collector:E. Brown s.n.
Date:10 Jun 1985
Accession No:187051
Image:187051.jpg
Family Name:Asteraceae
Currently Accepted Name:Pterocaulon pycnostachyum (Michx.) Elliott
Locality:USA. Florida. Collier Co.: Collier-Seminole State Park. Burn zone 7. T51S, R27E, Sec. 27. 26º 7’ 59” N -81º -28’ -59” W
Description:To 70 cm tall; occasional. 
Habitat:Wet flatwoods.
Reproductive State:Fruit, Flower
Collector:J. Weber CS0131
Date:27 Mar 1992
Accession No:206213
Image:206213.jpg
Family Name:Asteraceae
Currently Accepted Name:Pterocaulon pycnostachyum (Michx.) Elliott - Determined By: R. P. Wunderlin, 1986
Determination History: Pterocaulon virgatum (L.) DC.
Locality:USA. Florida. Hillsborough Co.: University of South Florida Ecological Research Area. 28º 0’ 0” N -82º 0’ 0” W
Habitat:Sandy area along road.
Reproductive State:Fruit, Bud
Collector:P. Jourdan s.n.
  with D.W. Crewz
Date:25 Jun 1977
Accession No:128424
Image:128424.jpg
Family Name:Asteraceae
Currently Accepted Name:Pterocaulon pycnostachyum (Michx.) Elliott
Locality:USA. Florida. Manatee Co.: Wingate Creek State Preserve. T35S, R22E, Sec. 7, NE¼ of SW¼ of NE¼.
Description:Erect to 70 cm tall; common. 
Habitat:Mesic flatwoods.
Reproductive State:Flower
Collector:C. Becker WC0167
Date:08 May 1997
Accession No:229196
Image:229196.jpg
Family Name:Asteraceae
Currently Accepted Name:Pterocaulon pycnostachyum (Michx.) Elliott
Locality:USA. Florida. Hillsborough Co.: Little Manatee River State Park. SE end of N. Hiking Trail. T32S, R20E, Sec. 30, NW¼ of NW¼. 27º 28’ 59” N -82º -10’ -59” W
Description:Erect to 0.5 m. 
Habitat:Ruderal.
Reproductive State:Bud
Collector:J. Myers 4
  with S. Marchesi
Date:22 Apr 1998
Accession No:230927
Image:230927.jpg
Family Name:Asteraceae
Currently Accepted Name:Pterocaulon pycnostachyum (Michx.) Elliott - Determined By: R. P. Wunderlin, 1986
Determination History: Pterocaulon virgatum (L.) DC. - Determined By: R. P. Wunderlin, 1976
Pterocaulon undulatum C. Mohr
Locality:USA. Florida. Hillsborough Co.: 1.5 mi. W of Plant City, 1.4 mi. S of FL574 on Airport Road, north side of runway.
Habitat:Scrub association of Pinus clausa, Ceratiola [ericoides], Quercus spp.
Reproductive State:Bud
Collector:W. E. Wall 40
Date:08 Mar 1963
Accession No:88944
Image:88944.jpg
Family Name:Asteraceae
Currently Accepted Name:Pterocaulon pycnostachyum (Michx.) Elliott
Locality:USA. Florida. Pinellas Co.: Brooker Creek Preserve. Ca. 4 mi. N of Oldsmar. T27S, R16E, Sec. 36, NW¼. 28º 2’ 3” N -82º -39’ -54” W
Habitat:Wet pine - palmetto flatwoods along powerline.
Reproductive State:Flower
Collector:B. F. Hansen 12214
  with R.P. Wunderlin, P. Dooris
Date:12 May 1993
Accession No:207746
Image:207746.jpg
Family Name:Asteraceae
Currently Accepted Name:Pterocaulon pycnostachyum (Michx.) Elliott - Determined By: R. P. Wunderlin, 1986
Determination History: Pterocaulon virgatum (L.) DC. - Determined By: R. P. Wunderlin
Locality:USA. Florida. Pasco Co.: Pasco Trails Ranch Development. 3 mi. E of US 41 on FL 52, N side. 28º 16’ 59” N -82º -25’ 0” W
Description:Frequent. 
Habitat:Sandhill.
Reproductive State:Bud
Collector:W. Carey 35
Date:11 Oct 1977
Accession No:128773
Image:128773.jpg
Family Name:Asteraceae
Currently Accepted Name:Pterocaulon pycnostachyum (Michx.) Elliott - Determined By: R. P. Wunderlin, 1986
Determination History: Pterocaulon virgatum (L.) DC. - Determined By: R. P. Wunderlin, 1976
Pterocaulon undulatum C. Mohr
Locality:USA. Florida. Broward Co.: Dixie Highway, Pompano Beach area. 26º 13’ 59” N -80º -7’ 0” W
Description:Common. 
Habitat:Pinus - Sabal scrub; open sand.
Reproductive State:Flower
Collector:O. K. Lakela 28305
Date:21 Mar 1965
Accession No:63880
Image:63880.jpg
Family Name:Asteraceae
Currently Accepted Name:Pterocaulon pycnostachyum (Michx.) Elliott
Locality:USA. Florida. Nassau Co.: St. Marys Conservation Area. Ca. 0.6 air mi. SW of Elbow Landing on St. Marys River, ca. 3.7 air mi. NE of Boulogne, ca. 10.5 air mi. N of downtown Hilliard. T5N, R24E, Sec. 32, SE¼. 30º 48’ 36” N 81º 56’ 0” W
Habitat:Cutover xeric sandhill woodland - savanna. Soils - Ortega (Typic Quartzipsamments).
Reproductive State:Flower
Elevation:70 ft
Collector:S. L. Orzell 19906
  with E.L. Bridges
Date:02 Jul 1992
Accession No:229498
Image:229498.jpg
Family Name:Asteraceae
Currently Accepted Name:Pterocaulon pycnostachyum (Michx.) Elliott
Locality:USA. Florida. Jefferson Co.: S side of I-10, ca. 1.2 mi. W of its junction with US 19, ca. 0.7 mi. E of C-259 bridge, ca. 7.3 mi. E of the junction with FL 59 to Lloyd. T1N, R4E, Sec. 22, NE¼ of NE¼. 30º 28’ 0” N -84º -1’ 0” W
Habitat:Burned, partially cutover, upland longleaf pine [Pinus palustris] savanna. Soils - Dothan (Plinthic Paleudults).
Reproductive State:Flower
Collector:S. L. Orzell 13188
  with E.L. Bridges
Date:27 Apr 1990
Accession No:229418
Image:229418.jpg
Family Name:Asteraceae
Currently Accepted Name:Pterocaulon pycnostachyum (Michx.) Elliott
Locality:USA. Florida. Clay Co.: Jennings [State] Forest - Black Creek Wildlife Management Area. Ca. 1 air mi. S of the the Duval County line, ca. 0.7 air mi. W of Yellow Water Creek, ca. 8.1 air mi. NW of Middleburg. T4S, R24E, Sec. 6, SE¼ of SE¼ of SE¼ of SE¼. 30º 10’ 20” N 81º 55’ 59” W
Habitat:Dry to mesic longleaf pine [Pinus palustris] flatwoods - sandhill transition.
Reproductive State:Fruit
Elevation:80 to 89 ft
Collector:S. L. Orzell 20118
  with E.L. Bridges
Date:09 Jul 1992
Accession No:229294
Image:229294.jpg
Family Name:Asteraceae
Currently Accepted Name:Pterocaulon pycnostachyum (Michx.) Elliott
Locality:USA. Florida. Charlotte Co.: Don Pedro Island State Recreation Area. Land Base, south side of flatwoods. T42S, R20E, Sec. 3. 28º 58’ 0” N -82º -7’ 0” W
Habitat:Pine flatwoods.
Reproductive State:Bud
Collector:S.W. Braem DP0160
Date:20 Mar 2000
Accession No:232466
Image:232466.jpg
Family Name:Asteraceae
Currently Accepted Name:Pterocaulon pycnostachyum (Michx.) Elliott
Locality:USA. Florida. Collier Co.: Ca. 1.4 air mi. SW of Miller Boulevard bridge over I-75 in south Golden Gate, ca. 6.5 air mi. NE of the junction of Rattlesnake Hammock Road and FL 951, ca. 12.5 air mi. E of Naples. T50S, R27E, Sec. 11, SE¼ of NW¼. 26º 8’ 0” N 81º 34’ 45” W
Habitat:Mesic pine - palmetto [Serenoa repens] flatwoods on sandy limestone soil. Soils - Hallandale and Boca (Lithic Psammaquents).
Reproductive State:Fruit
Elevation:12 ft
Collector:S. L. Orzell 19661
  with E.L. Bridges
Date:16 Jun 1992
Accession No:229220
Image:229220.jpg
Family Name:Asteraceae
Currently Accepted Name:Pterocaulon pycnostachyum (Michx.) Elliott
Locality:USA. Florida. Alachua Co.: W side of FL 325, ca. 3.4 mi. N of junction C-346, ca. 1.6 mi. S of the junction with FL 20 at a point ca. 10 mi. E of downtown Gainesville. T10S, R21E, Sec. 34, E½ of NE¼ of SE¼. 29º 34’ 32” N 82º 11’ 22” W
Habitat:Roadside seepage slope through mesic flatwoods.
Reproductive State:Flower
Elevation:95 to 105 ft
Collector:S. L. Orzell 13206
  with E.L. Bridges
Date:27 Apr 1990
Accession No:229603
Image:229603.jpg
Family Name:Asteraceae
Currently Accepted Name:Pterocaulon pycnostachyum (Michx.) Elliott
Locality:USA. Florida. Sarasota Co.: Churchill Ranch on Border Road, part of Deer Prairie Creek Preserve, ca. 2.3 km ENE of the junction of I-75 and C-777 (River Road). T39S, R20E, Sec. 5. 27º 7’ 3” N 82º 19’ 40” W
Habitat:Flatwoods.
Reproductive State:Flower
Collector:A. R. Franck 118
Date:09 May 2007
Accession No:245457
Image:245457.jpg
Family Name:Asteraceae
Currently Accepted Name:Pterocaulon pycnostachyum (Michx.) Elliott
Locality:USA. Florida. Highlands Co.: Highlands Hammock State Park. Burn zone H-54 SW, near seepage slope. T35S, R28E, Sec. 4, NW¼ of NE¼ of NW¼ of SE¼ of SE¼. 27º 22’ 0” N -81º -21’ 0” W
Habitat:Ruderal area; mesic flatwoods.
Reproductive State:Fruit, Bud
Collector:S. Cole HH0048
Date:08 Jun 1994
Accession No:211844
Image:211844.jpg
Family Name:Asteraceae
Currently Accepted Name:Pterocaulon pycnostachyum (Michx.) Elliott - Determined By: R. P. Wunderlin, 1986
Determination History: Pterocaulon virgatum (L.) DC.
Locality:USA. Florida. Miami-Dade Co.: South Miami. 25º 46’ 27” N -80º -11’ -37” W
Reproductive State:Immature Fruit, Flower
Collector:C. P. Sreemadhavan 5061
Date:10 Jul 1971
Accession No:133350
Image:133350.jpg
Family Name:Asteraceae
Currently Accepted Name:Pterocaulon pycnostachyum (Michx.) Elliott - Determined By: R. P. Wunderlin, 1986
Determination History: Pterocaulon virgatum (L.) DC. - Determined By: D. W. Crewz, Aug 1978
Pterocaulon pycnostachyum (Michx.) Elliott
Locality:USA. Florida. Manatee Co.: Ca. 0.5 mi. E of Gill Road and 2.75 mi. N of Duette. T33S, R22E, Sec. 9, NE part. 27º 34’ 59” N -82º -7’ 0” W
Description:Occasional, more abundant in surrounding flatwoods. 
Habitat:Extreme outer edge of small, herb-dominated, flatwoods marsh.
Reproductive State:Flower
Collector:A.G. Shuey 2082
Date:18 May 1978
Accession No:132284
Image:132284.jpg
Family Name:Asteraceae
Currently Accepted Name:Pterocaulon pycnostachyum (Michx.) Elliott - Determined By: R. P. Wunderlin, 1986
Determination History: Pterocaulon virgatum (L.) DC.
Locality:USA. Florida. Charlotte Co.: Along C-775 and FL 45A, 0.5 mi. W of El Jobean, near Myakka River. 27º 28’ 59” N -82º -3’ 0” W
Description:Frequent. 
Habitat:Mixed palmetto [Serenoa repens] scrub.
Reproductive State:Fruit
Collector:A. Fulton 60
Date:27 Oct 1977
Accession No:138332
Image:138332.jpg
Family Name:Asteraceae
Currently Accepted Name:Pterocaulon pycnostachyum (Michx.) Elliott - Determined By: R. P. Wunderlin, 1986
Determination History: Pterocaulon virgatum (L.) DC. - Determined By: R. P. Wunderlin, 1978
Locality:USA. Florida. Sarasota Co.: FL 72, 1 mi. W of junction with Bee Ridge Road.
Description:To 90 cm; common. 
Habitat:Roadside.
Reproductive State:Bud
Elevation:7 to 10 m
Collector:C. H. Dodson 4486
Date:26 Jun 1976
Accession No:138995
Image:138995.jpg
Family Name:Asteraceae
Currently Accepted Name:Pterocaulon pycnostachyum (Michx.) Elliott - Determined By: R. P. Wunderlin, 1986
Determination History: Pterocaulon virgatum (L.) DC.
Locality:USA. Florida. Clay Co.: 1.6 mi. E of Penney Farms on FL 16. T6S, R25E, Sec. 12, SW¼ of SW¼.
Habitat:Open roadside ditch along both sides of highway, in pine flatwoods.
Reproductive State:Flower, Bud
Collector:B. F. Hansen 5496
  with D. Richardson
Date:18 May 1979
Accession No:140741
Image:140741.jpg
Family Name:Asteraceae
Currently Accepted Name:Pterocaulon pycnostachyum (Michx.) Elliott - Determined By: R. P. Wunderlin, 1986
Determination History: Pterocaulon virgatum (L.) DC.
Locality:USA. Florida. Volusia Co.: Along FL 40, 0.8 mi. W of I-95; ca. 4 mi. W of New Smyrna Beach. T17S, R33E, Sec. 21, SW¼ of NE¼. 30º 35’ 59” N -85º -40’ -40” W
Habitat:Pine flatwoods along road.
Reproductive State:Flower
Collector:B. F. Hansen 5610
  with D. Richardson
Date:18 May 1979
Accession No:140999
Image:140999.jpg
Family Name:Asteraceae
Currently Accepted Name:Pterocaulon pycnostachyum (Michx.) Elliott - Determined By: R. P. Wunderlin, 1986
Determination History: Pterocaulon virgatum (L.) DC.
Locality:USA. Florida. Hillsborough Co.: Along FL 581, ca. 5 mi. N of Tampa. 27º 56’ 51” N -82º -27’ -30” W
Description:25 cm tall; common. 
Habitat:Roadside.
Reproductive State:Fertile
Collector:R. Rose 130
Date:06 Oct 1977
Accession No:132731
Image:132731.jpg
Family Name:Asteraceae
Currently Accepted Name:Pterocaulon pycnostachyum (Michx.) Elliott
Locality:USA. Florida. Volusia Co.: 0.3 mi. W of I-95 on FL 40; ca. 3.5 mi. W of New Smyrna Beach, under powerline. T17S, R33E, Sec. 21, SE¼ of NE¼. 30º 35’ 59” N -85º -40’ -40” W
Habitat:Pine flatwoods along road.
Reproductive State:Bud
Collector:D. Richardson 760
Date:28 Apr 1979
Accession No:140136
Image:140136.jpg
Family Name:Asteraceae
Currently Accepted Name:Pterocaulon pycnostachyum (Michx.) Elliott - Determined By: R. P. Wunderlin, 1986
Determination History: Pterocaulon virgatum (L.) DC.
Locality:USA. Florida. Okeechobee Co.: Along FL 68, 0.7 mi. W of the St. Lucie County line; 7.2 mi. E of the junction with US 441. T35S, R36E, Sec. 12, NE¼ of NW¼.
Habitat:Roadside ditch.
Reproductive State:Flower
Collector:B. F. Hansen 7242
  with R. Sauleda, D. Richardson
Date:29 May 1980
Accession No:149135
Image:149135.jpg
Family Name:Asteraceae
Currently Accepted Name:Pterocaulon pycnostachyum (Michx.) Elliott
Locality:USA. Florida. Monroe Co.: Big Pine Key. Along Key Deer Boulevard.
Description:Stems conspicuously winged; under side of leaves wooly-pubescent. 
Habitat:Cleared areas.
Collector:W. C. Brumbach 9549
Date:26 Mar 1980
Accession No:150696
Image:150696.jpg
Family Name:Asteraceae
Currently Accepted Name:Pterocaulon pycnostachyum (Michx.) Elliott - Determined By: J. E. Poppleton, 04-May-1973
Locality:USA. Florida. Brevard Co.: North Merritt Island; S of Wisconsin Village Road Grid. T21S, R36E, Sec. 27 NW¼.
Habitat:Pine flatwoods. Area burned in August 1972.
Reproductive State:Fruit
Collector:A.G. Shuey M0018
Date:04 May 1973
Accession No:118903
Image:118903.jpg
Family Name:Asteraceae
Currently Accepted Name:Pterocaulon pycnostachyum (Michx.) Elliott
Locality:USA. Florida. Hernando Co.: Weeki Wachee. Near lake.
Habitat:Sandy.
Reproductive State:Bud, Flower
Collector:G. Fleming 765
  with P. Genelle
Date:13 May 1971
Accession No:95763
Image:95763.jpg
Family Name:Asteraceae
Currently Accepted Name:Pterocaulon pycnostachyum (Michx.) Elliott
Locality:USA. Florida. Seminole Co.: SW of the town of Chuluota; along Red Embers Road between Scrub Oak Trail and Old Lockwood Road. 28º 37’ 28” N 81º 10’ 18” W
Habitat:Roadside.
Reproductive State:Bud, Flower
Collector:W. D. Longbottom 11128
  with D.H. Williams
Date:30 Apr 2008
Accession No:249361
Image:249361.jpg
Family Name:Asteraceae
Currently Accepted Name:Pterocaulon pycnostachyum (Michx.) Elliott - Determined By: R. A. Hattaway
Locality:USA. Florida. Citrus Co.: Fort Cooper State Park. N part of park. T19S, R20E, Sec. 28 NW¼ of NE¼.
Habitat:Sandhill.
Reproductive State:Flower
Collector:R. A. Hattaway FC0115
Date:12 May 2000
Accession No:235404
Image:235404.jpg
Family Name:Asteraceae
Currently Accepted Name:Pterocaulon pycnostachyum (Michx.) Elliott
Locality:USA. Florida. Citrus Co.: Withlacoochee State Forest. Just E of section line road, ca. 1.4 mi. S of Fivemile Pond, ca. 3.5 air mi. S of FL 44, ca. 10 air mi. E of Homosassa Springs. T19S, R19E, Sec. 27, SW¼. 28º 48’ 17” N 82º 24’ 9” W
Habitat:Mature burned longleaf pine [Pinus palustris] sandhill savanna. Soils - Lakeland (Typic Quartzipsamments).
Reproductive State:Fruit
Elevation:100 to 130 ft
Collector:S. L. Orzell 19748
  with E.L. Bridges
Date:29 Jun 1992
Accession No:229445
Image:229445.jpg
Family Name:Asteraceae
Currently Accepted Name:Pterocaulon pycnostachyum (Michx.) Elliott - Determined By: B. F. Hansen, Sep 2001
Determination History: Pterocaulon virgatum (L.) DC.
Locality:USA. Florida. Sarasota Co.: Myakka River State Park. Foxes Low Road, near Florida Trail head. 27º 16’ 32” N 82º 15’ 58” W
Description:Herb with erect or reclining stems; common. 
Habitat:Disturbed area along road in sandy soil.
Reproductive State:Bud, Fruit
Elevation:5 to 10 m
Collector:B. K. Holst 4982
  with F. Barrington, P. Garton, A. Quagliata
Date:19 Jun 1995
Accession No:230079
Image:230079.jpg
Family Name:Asteraceae
Currently Accepted Name:Pterocaulon pycnostachyum (Michx.) Elliott
Locality:USA. Florida. Hillsborough Co.: N of FL 581, ca. 0.5 mi. from junction with FL 582A.
Habitat:Ruderal.
Reproductive State:Flower
Collector:S. Hardee 22
Date:23 May 1974
Accession No:111436
Image:111436.jpg
Family Name:Asteraceae
Currently Accepted Name:Pterocaulon pycnostachyum (Michx.) Elliott
Locality:USA. Florida. Pinellas Co.: Near end of Bolesta Road.
Description:Ca. 4 dm tall. 
Habitat:Disturbed area in full sun.
Reproductive State:Flower, Fruit
Collector:D. R. Jones 7
Date:18 May 1974
Accession No:111067
Image:111067.jpg
Family Name:Asteraceae
Currently Accepted Name:Pterocaulon pycnostachyum (Michx.) Elliott - Determined By: R. P. Wunderlin, 1986
Determination History: Pterocaulon virgatum (L.) DC.
Locality:USA. Florida. Sarasota Co.: Venice Municipal Fishing Pier. T39S, R18E, Sec. 24, SW¼ of NW¼. 27º 5’ 59” N -82º -27’ -15” W
Habitat:Grassy area; edge of coastal strand and pine woods.
Reproductive State:Bud
Collector:R. P. Sauleda 3369
Date:20 Mar 1980
Accession No:155146
Image:155146.jpg
Family Name:Asteraceae
Currently Accepted Name:Pterocaulon pycnostachyum (Michx.) Elliott
Locality:USA. Florida. Collier Co.: Vanderbilt Beach, off US 41.
Habitat:Pine scrub.
Reproductive State:Fruit
Collector:R. P. Wunderlin 5178
  with T.F. Wunderlin
Date:17 Nov 1973
Accession No:110067
Image:110067.jpg
Family Name:Asteraceae
Currently Accepted Name:Pterocaulon pycnostachyum (Michx.) Elliott - Determined By: R. P. Wunderlin, 1986
Determination History: Pterocaulon virgatum (L.) DC.
Locality:USA. Florida. Pinellas Co.: Honeymoon Island, mid-island road. T28S, R15E, Sec. 5.
Habitat:Roadside sand.
Reproductive State:Bud
Collector:G. Fleming 3356
Date:28 Apr 1980
Accession No:149296
Image:149296.jpg
Family Name:Asteraceae
Currently Accepted Name:Pterocaulon pycnostachyum (Michx.) Elliott - Determined By: R. P. Wunderlin, 1986
Determination History: Pterocaulon virgatum (L.) DC.
Locality:USA. Florida. Volusia Co.: West Halifax Avenue (Maytown Road), 3.9 mi. from junction with US 1 (Oak Hill). T19S, R34E, SW corner of John Low Grant. 28º 48’ 0” N -80º -57’ 0” W
Habitat:Sand pine [Pinus clausa] scrub.
Reproductive State:Flower
Collector:G. Robinson 152
  with B.F. Hansen
Date:20 May 1981
Accession No:156632
Image:156632.jpg
Family Name:Asteraceae
Currently Accepted Name:Pterocaulon pycnostachyum (Michx.) Elliott
Locality:USA. Florida. Marion Co.: Just S of Romeo. 29º 12’ 0” N -82º -25’ -59” W
Habitat:Pine woods.
Reproductive State:Flower
Collector:D. S. Correll 51704
  with H.B. Correll
Date:26 Apr 1981
Accession No:156154
Image:156154.jpg
Family Name:Asteraceae
Currently Accepted Name:Pterocaulon pycnostachyum (Michx.) Elliott
Locality:USA. Florida. Orange Co.: Off FL 545 at Lake Maika'I campground, ca. 8 mi. W of Lake Buena Vista. 29º 22’ 0” N -83º -1’ -59” W
Description:Common. 
Habitat:Along trail behind campground.
Reproductive State:Flower
Collector:L. J. Davenport 1852
Date:13 May 1980
Accession No:152009
Image:152009.jpg
Family Name:Asteraceae
Currently Accepted Name:Pterocaulon pycnostachyum (Michx.) Elliott - Determined By: R. P. Wunderlin, 1986
Determination History: Pterocaulon virgatum (L.) DC.
Locality:USA. Florida. Pasco Co.: 5 mi. S of FL 54 along Seven Springs Avenue.
Habitat:Disturbed area; sandy soil.
Reproductive State:Fruit, Bud
Collector:C. G. Willett 126
Date:26 Nov 1977
Accession No:131574
Image:131574.jpg
Family Name:Asteraceae
Currently Accepted Name:Pterocaulon pycnostachyum (Michx.) Elliott - Determined By: R. P. Wunderlin, 1986
Determination History: Pterocaulon virgatum (L.) DC.
Locality:USA. Florida. Hillsborough Co.: E side of University of South Florida campus. 28º 0’ 0” N -82º 0’ 0” W
Description:0.15 m tall; occasional. 
Habitat:Pinelands.
Reproductive State:Fruit
Collector:J. Gregory 61
Date:10 Nov 1977
Accession No:132575
Image:132575.jpg
Family Name:Asteraceae
Currently Accepted Name:Pterocaulon pycnostachyum (Michx.) Elliott - Determined By: R. P. Wunderlin, 1986
Determination History: Pterocaulon virgatum (L.) DC. - Determined By: R. P. Wunderlin, 1976
Pterocaulon undulatum C. Mohr
Locality:USA. Florida. Citrus Co.: 12 mi. N of Brooksville. 28º 33’ 18” N -82º -23’ -16” W
Habitat:Loose sands of longleaf pine [Pinus palustris] - turkey oak [Quercus laevis] hills.
Reproductive State:Fruit
Collector:R. Kral 6631
  with M. Kral
Date:05 Jun 1958
Accession No:5253
Image:5253.jpg
Family Name:Asteraceae
Currently Accepted Name:Pterocaulon pycnostachyum (Michx.) Elliott
Determination History: Pterocaulon virgatum (L.) DC. - Determined By: R. P. Wunderlin, 1976
Pterocaulon undulatum C. Mohr
Locality:USA. Florida. Miami-Dade Co.: N of Miami on 7th Avenue. 25º 46’ 27” N -80º -11’ -37” W
Habitat:Low pineland or wet meadow.
Reproductive State:Fruit
Collector:B. Ledin 1693
Date:12 Jul 1947
Accession No:4402
Image:4402.jpg
Family Name:Asteraceae
Currently Accepted Name:Pterocaulon pycnostachyum (Michx.) Elliott - Determined By: R. P. Wunderlin, 1986
Determination History: Pterocaulon virgatum L. - Determined By: R. P. Wunderlin, 1976
Pterocaulon undulatum (C. Mohr)
Locality:USA. Florida. Highlands Co.: South of Lake Placid.
Description:Frequent for 6 or 8 mi. 
Habitat:Along disturbed shoulder of highway.
Reproductive State:Bud, Flower
Collector:G. R. Cooley 1249
Date:09 Apr 1952
Accession No:4403
Image:4403.jpg
Family Name:Asteraceae
Currently Accepted Name:Pterocaulon pycnostachyum (Michx.) Elliott
Locality:USA. Florida. Highlands Co.: S of Jackson Creek, ca. 6.2 mi. NW of Lake Placid. T36S, R29E, Sec. 8, NE¼ of SE¼.. 27º 21’ 32” N 81º 26’ 6” W
Habitat:Recently burned, open flatwoods.
Reproductive State:Flower
Collector:K. R. DeLaney s.n.
Date:15 Dec 1998
Accession No:250146
Image:250146.jpg
Family Name:Asteraceae
Currently Accepted Name:Pterocaulon pycnostachyum (Michx.) Elliott - Determined By: R. P. Wunderlin, 1986
Determination History: Pterocaulon virgatum (L.) DC.
Locality:USA. Florida. Lee Co.: Pine Island; FL 867, 1 mi. S of its junction with FL 78 at Pine Island Center. T44S, R22E, Sec. 33, SW¼ of NE¼.
Habitat:Pine flatwoods with Pinus elliottii, Myrica cerifera, Lyonia fruticosa, Bejaria racemosa, and Serenoa repens.
Reproductive State:Bud
Collector:B. F. Hansen 5418
  with T. Cochrane, B. Cochrane
Date:20 Apr 1979
Accession No:143840
Image:143840.jpg
Family Name:Asteraceae
Currently Accepted Name:Pterocaulon pycnostachyum (Michx.) Elliott - Determined By: B. F. Hansen, 1990
Determination History: Pterocaulon virgatum (L.) DC. - Determined By: D. W. Crewz, 08 Apr 1980
Pterocaulon pycnostachyum (Michx.) Elliott
Locality:USA. Florida. Hillsborough Co.: FL 574, E of US 301, N of highway.
Habitat:Oak - saw palmetto [Serenoa repens] sand scrub.
Reproductive State:Bud, Fruit
Collector:J.M. Carlton s.n.
Date:28 Jun 1977
Accession No:201016
Image:201016.jpg
Family Name:Asteraceae
Currently Accepted Name:Pterocaulon pycnostachyum (Michx.) Elliott - Determined By: R. P. Wunderlin, 1986
Determination History: Pterocaulon virgatum (L.) DC. - Determined By: R. P. Wunderlin, 1976
Pterocaulon undulatum C. Mohr - Determined By: D. B. Ward
Locality:USA. Florida. Hardee Co.: Peace River, N of FL 64, W side of Zolfo Springs. T34S, R25E, Sec. 21, SE¼. 27º 55’ 0” N -81º -49’ 0” W
Description:Infrequent. 
Habitat:Dry sand bank.
Reproductive State:Bud
Collector:BTY [Botany] 421 A-11
Date:14 Apr 1961
Accession No:44965
Image:44965.jpg
Family Name:Asteraceae
Currently Accepted Name:Pterocaulon pycnostachyum (Michx.) Elliott - Determined By: R. P. Wunderlin, 1986
Determination History: Pterocaulon virgatum (L.) DC. - Determined By: R. P. Wunderlin, 1976
Pterocaulon undulatum C. Mohr - Determined By: Erdman West
Locality:USA. Florida. Bradford Co.: W side of US 301, 2.2 mi. N of Starke. T6N, R22E, Sec. 3. 29º 56’ 38” N -82º -6’ -35” W
Description:Frequent. 
Habitat:Moist open pine stand.
Reproductive State:Bud
Collector:D. B. Ward 1360
  with S.S. Ward, E. West
Date:15 May 1959
Accession No:44944
Image:44944.jpg
Family Name:Asteraceae
Currently Accepted Name:Pterocaulon pycnostachyum (Michx.) Elliott - Determined By: R. P. Wunderlin, 1986
Determination History: Pterocaulon virgatum (L.) DC. - Determined By: R. P. Wunderlin, 1976
Pterocaulon undulatum C. Mohr - Determined By: D. B. Ward
Locality:USA. Florida. Hamilton Co.: 1 mi. W of Westlake along FL 6. T1N, R12E, Sec. 17. 26º 45’ 29” N -80º -18’ -26” W
Description:Infrequent. 
Habitat:Dry sand at edge of turkey oak [Quercus laevis] woods.
Reproductive State:Fruit
Collector:D. B. Ward 1433
  with S.S. Ward
Date:14 Jun 1959
Accession No:44954
Image:44954.jpg
Family Name:Asteraceae
Currently Accepted Name:Pterocaulon pycnostachyum (Michx.) Elliott - Determined By: R. P. Wunderlin, 1986
Determination History: Pterocaulon virgatum (L.) DC.
Locality:USA. Florida. Pinellas Co.: Moccasin Lake Park. 2750 Park Trail Lane, Clearwater; Magnolia Trail. 27º 57’ 54” N -82º -54’ -40” W
Habitat:Open area in pinelands.
Collector:G. Fleming 3550
Date:29 Apr 1983
Accession No:170950
Image:170950.jpg
Family Name:Asteraceae
Currently Accepted Name:Pterocaulon pycnostachyum (Michx.) Elliott
Locality:USA. Florida. Sarasota Co.: Oscar Scherer State Park. Burn zone 6B south.
Description:To 2 ft tall; occasional. 
Habitat:Mesic flatwoods.
Reproductive State:Flower
Collector:A. Peters OS0029
Date:10 Apr 1991
Accession No:202394
Image:202394.jpg
Family Name:Asteraceae
Currently Accepted Name:Pterocaulon pycnostachyum (Michx.) Elliott - Determined By: R. P. Wunderlin, 1986
Determination History: Pterocaulon virgatum (L.) DC.
Locality:USA. Florida. Orange Co.: Moss Park, W shore of Lake Mary Jane. T24S, R31E, Sec. 23, SE¼ of SW¼.
Habitat:Sandy, open disturbed lake shore grading into Typha marsh.
Reproductive State:Flower
Collector:B. F. Hansen 8744
  with D. Lindsey
Date:25 Aug 1981
Accession No:157329
Image:157329.jpg
Family Name:Asteraceae
Currently Accepted Name:Pterocaulon pycnostachyum (Michx.) Elliott - Determined By: R. P. Wunderlin, 1986
Determination History: Pterocaulon virgatum (L.) DC.
Locality:USA. Florida. Osceola Co.: Along C-534, 4.0 mi. W of junction with US 441 and US 192; 0.5 mi. NW of Brick Lake. T26S, R31E, Sec. 34, NW¼ of SW¼.
Habitat:Pine flatwoods along canal.
Reproductive State:Fruit
Collector:B. F. Hansen 8620
  with G. Robinson
Date:14 Aug 1981
Accession No:156858
Image:156858.jpg
Family Name:Asteraceae
Currently Accepted Name:Pterocaulon pycnostachyum (Michx.) Elliott - Determined By: R. P. Wunderlin, 1986
Determination History: Pterocaulon virgatum (L.) DC.
Locality:USA. Florida. Pinellas Co.: Dunedin Hammock, Dunedin. 28º 1’ 11” N -82º -46’ -18” W
Habitat:White sand area.
Reproductive State:Bud
Collector:G. Fleming 2734
  with P. Genelle
Date:01 May 1977
Accession No:127916
Image:127916.jpg
Family Name:Asteraceae
Currently Accepted Name:Pterocaulon pycnostachyum (Michx.) Elliott
Locality:USA. Florida. Osceola Co.: E of St. Cloud, along FL 532, vicinity of New Eden. 28º 16’ 31” N 81º 5’ 18” W
Description:Scattered. 
Habitat:Roadside.
Reproductive State:Flower
Collector:W. D. Longbottom 4829
  with D.H. Williams, H.L. Williams
Date:07 May 2000
Accession No:243340
Image:243340.jpg
Family Name:Asteraceae
Currently Accepted Name:Pterocaulon pycnostachyum (Michx.) Elliott
Locality:USA. Florida. Charlotte Co.: Prairie/Shell Creek (Southwest Florida Water Management District property), ca. 7 km NE of the junction of I-75 and US 17, ca. 12 km NE of Punta Gorda. T40S, R23E, Sec. 24, NW¼. 28º 0’ 0” N -82º 0’ 0” W
Habitat:Powerline right-of-way.
Reproductive State:Flower
Collector:A. R. Franck 1266
Date:21 May 2009
Accession No:249412
Image:249412.jpg
Family Name:Asteraceae
Currently Accepted Name:Pterocaulon pycnostachyum (Michx.) Elliott - Determined By: R. P. Wunderlin, 1986
Determination History: Pterocaulon virgatum (L.) DC.
Locality:USA. Florida. Sarasota Co.: Little Salt Spring peat bog, within North Port. T39S, R21E, Sec. 20, NW¼.
Reproductive State:Fruit
Collector:J. Brown 503
  with T. Arcuri
Date:07 Jun 1977
Accession No:129966
Image:129966.jpg
Family Name:Asteraceae
Currently Accepted Name:Pterocaulon pycnostachyum (Michx.) Elliott - Determined By: R. P. Wunderlin, 1986
Determination History: Pterocaulon virgatum (L.) DC.
Locality:USA. Florida. Pinellas Co.: US 19, 1 mi. N of FL 588.
Habitat:Open meadow.
Reproductive State:Bud
Collector:G. Fleming 2874
  with P. Genelle
Date:18 Jun 1977
Accession No:130005
Image:130005.jpg
Family Name:Asteraceae
Currently Accepted Name:Pterocaulon pycnostachyum (Michx.) Elliott
Locality:USA. Florida. Putnam Co.: SW of Palatka, along FL 19, ca. 1 mi. S of Cross Florida Barge Canal, at Caravelle Ranch Road, W side of road. 29º 38’ 54” N -81º -38’ -15” W
Habitat:Ditch.
Reproductive State:Flower
Collector:W. D. Longbottom 11312
  with D.H. Williams
Date:03 May 2008
Accession No:249238
Image:249238.jpg
Family Name:Asteraceae
Currently Accepted Name:Pterocaulon pycnostachyum (Michx.) Elliott
Locality:USA. Florida. Osceola Co.: E of St. Cloud, along FL 532, vicinity of powerline right-of-way, W of junction with FL 419l 28º 16’ 29” N 80º 58’ 47” W
Habitat:Roadside.
Reproductive State:Bud
Collector:W. D. Longbottom 4849
  with D.H. Williams, H.L. Williams
Date:07 May 2000
Accession No:243293
Image:243293.jpg
Family Name:Asteraceae
Currently Accepted Name:Pterocaulon pycnostachyum (Michx.) Elliott
Locality:USA. Florida. Calhoun Co.: White Pond; N of Bear Head Road. 30º 33’ 3” N 85º 13’ 39” W
Description:Disk florets whitish; erect to 30 cm; locally occasional. 
Habitat:Recently burned, upland deciduous forest.
Reproductive State:Bud, Fruit
Collector:T. MacClendon 470
  with K. MacClendon, L.C. Anderson
Date:05 Jun 2006
Accession No:242823
Image:242823.jpg
Family Name:Asteraceae
Currently Accepted Name:Pterocaulon pycnostachyum (Michx.) Elliott - Determined By: L. A. Lathrop
Locality:USA. Florida. Brevard Co.: Fox Lake Farms. 28º 34’ 56” N 80º 51’ 27” W
Description:Common. 
Habitat:Disturbed wet scrub; sandy soil.
Reproductive State:Fruit
Collector:L. A. Lathrop 128
Date:07 Jul 2003
Accession No:236705
Image:236705.jpg
Family Name:Asteraceae
Currently Accepted Name:Pterocaulon pycnostachyum (Michx.) Elliott
Locality:USA. Florida. Pasco Co.: Werner-Boyce Salt Springs State Park. Along nature trail to salt springs. T25S, R16E, Sec. 20, SE¼.
Habitat:Mesic flatwoods.
Reproductive State:Immature Fruit
Collector:C. vanHoek WB044
  with S. Petty
Date:20 Jun 2002
Accession No:233801
Image:233801.jpg
Family Name:Asteraceae
Currently Accepted Name:Pterocaulon pycnostachyum (Michx.) Elliott - Determined By: R. P. Wunderlin, 1986
Determination History: Pterocaulon virgatum (L.) DC.
Locality:USA. Florida. Osceola Co.: W side of main road leading S through Poinciana, ca. 0.75 mi. S of US 17 and US 92. 28º 10’ 0” N -81º -25’ 0” W
Habitat:Herb-dominated pineland swale.
Reproductive State:Flower
Collector:R. P. Wunderlin 5770
  with A.G. Shuey
Date:25 Jun 1977
Accession No:130689
Image:130689.jpg
Family Name:Asteraceae
Currently Accepted Name:Pterocaulon pycnostachyum (Michx.) Elliott - Determined By: R. P. Wunderlin, 1986
Determination History: Pterocaulon virgatum (L.) DC.
Locality:USA. Florida. Hillsborough Co.: Lake Park.
Habitat:Pine and palmetto [Serenoa repens] area.
Reproductive State:Flower
Collector:S. Mortellaro 94
Date:16 Jul 1976
Accession No:131317
Image:131317.jpg
Family Name:Asteraceae
Currently Accepted Name:Pterocaulon pycnostachyum (Michx.) Elliott - Determined By: R. P. Wunderlin, 1986
Determination History: Pterocaulon virgatum (L.) DC. - Determined By: R. P. Wunderlin
Locality:USA. Florida. Polk Co.: 1 year old mined phosphate site.
Reproductive State:Fertile
Collector:J. Brown s.n.
Date:05 Jun 1976
Accession No:130758
Image:130758.jpg
Family Name:Asteraceae
Currently Accepted Name:Pterocaulon pycnostachyum (Michx.) Elliott
Locality:USA. Florida. Brevard Co.: North Merritt Island. T21S, R36E.
Habitat:Pine flatwoods, moist soil among wiregrass [Aristida stricta var. beyrichiana] and palmetto [Serenoa repens] in treeless flatwoods.
Reproductive State:Fruit
Collector:A.G. Shuey M1216
Date:21 Jul 1972
Accession No:123782
Image:123782.jpg
Family Name:Asteraceae
Currently Accepted Name:Pterocaulon pycnostachyum (Michx.) Elliott
Locality:USA. Florida. Monroe Co.: Big Pine Key, ca. 2 mi. from W end of island off US 1.
Description:Perennial to 3–4 dm tall; disk florets greenish-white. 
Habitat:Pinelands with large stands of Thrinax microcarpa [T. morrisii] and Coccothrinax argentata over limestone soil.
Reproductive State:Flower
Collector:F. Almeda 1919
  with O. Lakela
Date:09 Jun 1973
Accession No:105460
Image:105460.jpg
Family Name:Asteraceae
Currently Accepted Name:Pterocaulon pycnostachyum (Michx.) Elliott - Determined By: B. F. Hansen, 1990
Determination History: Pterocaulon virgatum (L.) DC. - Determined By: W. F. Grey, 02 Apr 1979
Pterocaulon virgatum (L.) DC. - Determined By: Durako, M. & Gross, R. H.
Locality:USA. Florida. Palm Beach Co.: 1 mi. W of turnpike off Forest Hill Boulevard.
Habitat:Pine flatwoods.
Reproductive State:Fruit
Collector:M. Durako 12
Date:03 Mar 1972
Accession No:201055
Image:201055.jpg
Family Name:Asteraceae
Currently Accepted Name:Pterocaulon pycnostachyum (Michx.) Elliott - Determined By: R. P. Wunderlin, 1986
Determination History: Pterocaulon virgatum (L.) DC.
Locality:USA. Florida. Polk Co.: Avon Park Air Force Bombing Range; ca. 20 m WSW of Frostproof Road, 0.25 mi. S of north gate. T32S, R29E, Sec. 4. 27º 44’ 45” N -81º -31’ -50” W
Habitat:Pine flatwoods.
Reproductive State:Flower
Collector:D. R. Lindsey 463
  with S. Upchurch
Date:08 May 1981
Accession No:168690
Image:168690.jpg
Family Name:Asteraceae
Currently Accepted Name:Pterocaulon pycnostachyum (Michx.) Elliott - Determined By: R. P. Wunderlin, 1986
Determination History: Pterocaulon virgatum (L.) DC.
Locality:USA. Florida. Union Co.: Along C-231A, 0.8 mi. W of C-231; ca. 5 mi. NW of Lake Butler. T5S, R19E, Sec. 2, NE¼ of SE¼. 30º 46’ 59” N -84º -55’ -59” W
Habitat:Weedy roadside in recently logged pine flatwoods.
Reproductive State:Bud, Fruit
Collector:B. F. Hansen 10280
  with G. Robinson
Date:12 Jul 1984
Accession No:180577
Image:180577.jpg
Family Name:Asteraceae
Currently Accepted Name:Pterocaulon pycnostachyum (Michx.) Elliott
Locality:USA. Florida. Hernando Co.: Withlacoochee State Forest. 28º 21’ 0” N -81º -49’ 0” W
Habitat:Sandy pinelands, Pinus elliottii.
Reproductive State:Flower
Collector:G. Fleming 1799 R.L.
  with P. Genelle
Date:05 May 1973
Accession No:104803
Image:104803.jpg
Family Name:Asteraceae
Currently Accepted Name:Pterocaulon pycnostachyum (Michx.) Elliott
Locality:USA. Florida. Marion Co.: Ca. 0.1 mi. E of BM 52, S of Tishler Pond. T14S, R24E, Sec. 34.
Description:To 5 dm tall; locally abundant. 
Habitat:Young slash pine [Pinus elliottii] - turkey oak [Quercus laevis] woods.
Reproductive State:Fruit
Collector:S. T. Cooper 545
  with D.L. Martin
Date:09 May 1975
Accession No:122883
Image:122883.jpg
Family Name:Asteraceae
Currently Accepted Name:Pterocaulon pycnostachyum (Michx.) Elliott - Determined By: R. P. Wunderlin, 1986
Determination History: Pterocaulon virgatum (L.) DC.
Locality:USA. Florida. Baker Co.: Along C-127, 0.8 mi. S of C-120; ca. 5 mi. S of Baxter. T1S, R21E, Sec. 5, NW¼ of NE¼. 30º 30’ 0” N -82º -13’ -59” W
Habitat:Roadside ditch in recently logged pine flatwoods.
Reproductive State:Fruit
Collector:B. F. Hansen 10080
  with G. Robinson
Date:11 Jul 1984
Accession No:180644
Image:180644.jpg
Family Name:Asteraceae
Currently Accepted Name:Pterocaulon pycnostachyum (Michx.) Elliott - Determined By: R. P. Wunderlin, 1986
Determination History: Pterocaulon virgatum (L.) DC. - Determined By: R. P. Wunderlin, 1976
Pterocaulon undulatum C. Mohr
Locality:USA. Florida. Leon Co.: Vicinity of Tallahassee. 30º 26’ 17” N -84º -16’ -50” W
Reproductive State:Fruit
Collector:D. Laker s.n.
Date:14 Jul 1966
Accession No:89191
Image:89191.jpg
Family Name:Asteraceae
Currently Accepted Name:Pterocaulon pycnostachyum (Michx.) Elliott - Determined By: R. P. Wunderlin, 1986
Determination History: Pterocaulon virgatum (L.) DC. - Determined By: R. P. Wunderlin, 1976
Pterocaulon undulatum C. Mohr
Locality:USA. Florida. Palm Beach Co.: Both sides of Old Okeechobee Road around the bend from the Shrine Club, West Palm Beach. 27º 14’ 38” N -80º -49’ -47” W
Habitat:Waste land, disturbed ground; sand; full sun.
Reproductive State:Fruit
Collector:P. M. Cassen 153
Date:24 Aug 1967
Accession No:81228
Image:81228.jpg
Family Name:Asteraceae
Currently Accepted Name:Pterocaulon pycnostachyum (Michx.) Elliott - Determined By: R. P. Wunderlin, 1986
Determination History: Pterocaulon virgatum (L.) DC. - Determined By: R. P. Wunderlin, 1976
Pterocaulon undulatum C. Mohr - Determined By: E. C. Leonard
Locality:USA. Florida. Broward Co.: Dania Reservation. 26º 3’ 0” N -80º -7’ -59” W
Reproductive State:Bud
Collector:W. C. Sturtevant 101
Date:30 Apr 1959
Accession No:82087
Image:82087.jpg
Family Name:Asteraceae
Currently Accepted Name:Pterocaulon pycnostachyum (Michx.) Elliott - Determined By: R. P. Wunderlin, 1986
Determination History: Pterocaulon virgatum (L.) DC. - Determined By: R. P. Wunderlin, 1976
Pterocaulon undulatum C. Mohr
Locality:USA. Florida. Collier Co.: Off FL 82, W of Immokalee. 26º 25’ 9” N -81º -25’ -12” W
Habitat:With Trilisa [Carphephorus], Sabatia; white sand palmetto [Serenoa repens] scrub.
Reproductive State:Flower
Collector:O. K. Lakela 27403
Date:25 Sep 1964
Accession No:61625
Image:61625.jpg
Family Name:Asteraceae
Currently Accepted Name:Pterocaulon pycnostachyum (Michx.) Elliott - Determined By: R. P. Wunderlin, 1986
Determination History: Pterocaulon virgatum (L.) DC. - Determined By: R. P. Wunderlin, 1976
Pterocaulon undulatum C. Mohr
Locality:USA. Florida. Monroe Co.: Big Pine Key.
Habitat:Flat, low pineland with Eugenia, Smilax, Cirsium, Solidago, Coreopsis.
Reproductive State:Fruit
Collector:O. K. Lakela 27900
Date:13 Nov 1964
Accession No:61709
Image:61709.jpg
Family Name:Asteraceae
Currently Accepted Name:Pterocaulon pycnostachyum (Michx.) Elliott - Determined By: R. P. Wunderlin, 1986
Determination History: Pterocaulon virgatum (L.) DC. - Determined By: R. P. Wunderlin, 1976
Gnaphalium purpureum L.
Locality:USA. Florida. Hendry Co.: 3 mi. W of the junction of FL 80 and FL 29 on FL 80, area bulldozed for construction.
Habitat:Sandy area with many palm trees.
Reproductive State:Bud, Flower
Collector:LeDoux 301
  with Pries
Date:05 Jan 1973
Accession No:116160
Image:116160.jpg
Family Name:Asteraceae
Currently Accepted Name:Pterocaulon pycnostachyum (Michx.) Elliott - Determined By: R. P. Wunderlin, 1986
Determination History: Pterocaulon virgatum (L.) DC.
Locality:USA. Florida. Citrus Co.: Crystal River, US 19 and FL 494.
Reproductive State:Bud
Collector:M. E. Schmid A-396
Date:24 Apr 1984
Accession No:181897
Image:181897.jpg
Family Name:Asteraceae
Currently Accepted Name:Pterocaulon pycnostachyum (Michx.) Elliott - Determined By: R. P. Wunderlin, 1986
Determination History: Pterocaulon virgatum (L.) DC.
Locality:USA. Florida. Flagler Co.: Palm Coast. 28º 0’ 19” N -82º -27’ -2” W
Reproductive State:Flower
Collector:D. Tabb s.n.
Date:12 Jun 1978
Accession No:183137
Image:183137.jpg
Family Name:Asteraceae
Currently Accepted Name:Pterocaulon pycnostachyum (Michx.) Elliott
Determination History: Pterocaulon virgatum (L.) DC.
Locality:USA. Florida. Pinellas Co.: NW of Clearwater Sewage Treatment Plant. 27º 57’ 54” N -82º -54’ -40” W
Habitat:Open trail along creek bank.
Reproductive State:Bud
Collector:G. Fleming 4010
Date:17 Apr 1988
Accession No:196049
Image:196049.jpg
Family Name:Asteraceae
Currently Accepted Name:Pterocaulon pycnostachyum (Michx.) Elliott
Locality:USA. Florida. Citrus Co.: Chassahowitzka 28º 42’ 0” N -82º -34’ 0” W
Habitat:Open field at roadside.
Reproductive State:Flower
Collector:G. Fleming 1243
  with P. Genelle
Date:30 Apr 1972
Accession No:101056
Image:101056.jpg
Family Name:Asteraceae
Currently Accepted Name:Pterocaulon pycnostachyum (Michx.) Elliott
Locality:USA. Florida. Brevard Co.: Wickham Park. 28º 9’ 40” N 80º 39’ 34” W
Description:Erect to 1.5 ft. 
Habitat:Edge of pine flatwoods.
Reproductive State:Flower, Bud
Collector:J. E. Tear 2108
  with T. MacClendon
Date:27 Mar 2002
Accession No:231909
Image:231909.jpg
Family Name:Asteraceae
Currently Accepted Name:Pterocaulon pycnostachyum (Michx.) Elliott
Locality:USA. Florida. Seminole Co.: NE of Chuluota at the end of Twisting River Lane, E of Snow Hill Road, N of Econlockhatchee River. 28º 40’ 38” N 81º 6’ 4” W
Reproductive State:Flower, Bud
Collector:W. D. Longbottom 5097
  with D.H. Williams
Date:20 Apr 2002
Accession No:247195
Image:247195.jpg
Family Name:Asteraceae
Currently Accepted Name:Pterocaulon pycnostachyum (Michx.) Elliott
Locality:USA. Florida. Sumter Co.: Dade Battlefield Historic State Park. T21S, R22E, Sec. 20. 28º 37’ 59” N -82º -9’ 0” W
Habitat:Flatwoods.
Reproductive State:Fruit
Collector:A. Bishop DB0052
  with K. Alvarez
Date:25 Jun 2004
Accession No:248434
Image:248434.jpg
Family Name:Asteraceae
Currently Accepted Name:Pterocaulon pycnostachyum (Michx.) Elliott
Locality:USA. Florida. Manatee Co.: FL 64, 22 mi. E of Bradenton. 27º 29’ 56” N -82º -34’ -29” W
Habitat:Moist roadside.
Reproductive State:Bud
Collector:G. Fleming 2017
  with P. Genelle
Date:13 Apr 1975
Accession No:119894
Image:119894.jpg
Family Name:Asteraceae
Currently Accepted Name:Pterocaulon pycnostachyum (Michx.) Elliott
Locality:USA. Florida. Pinellas Co.: Caladesi Island.
Habitat:Pineland dominated by Pinus elliottii, Sabal palmetto, Juniperus silicicola [virginiana], Serenoa repens.
Reproductive State:Fruit
Collector:L. Fowler 25
Date:30 Jun 1973
Accession No:112658
Image:112658.jpg
Family Name:Asteraceae
Currently Accepted Name:Pterocaulon pycnostachyum (Michx.) Elliott
Locality:USA. Florida. Santa Rosa Co.: Broxson Bend, NE of FL 87. T1N, R27W, Sec. 25, SW¼. 30º 34’ 0” N -86º -55’ 0” W
Habitat:Pineland.
Reproductive State:Bud, Fruit
Collector:G. Wilhelm 7177
Date:11 Jun 1980
Accession No:151049
Image:151049.jpg
Family Name:Asteraceae
Currently Accepted Name:Pterocaulon pycnostachyum (Michx.) Elliott - Determined By: R. P. Wunderlin, 1986
Determination History: Pterocaulon virgatum (L.) DC.
Locality:USA. Florida. Highlands Co.: Avon Park Air Force Bombing Range; junction of Ellis Grade and Van Eeghen Grade. T33S, R30E, Sec. 23. 30º 55’ 0” N -85º -13’ -59” W
Habitat:Small, dry field between road and pine plantation.
Reproductive State:Bud
Collector:D. R. Lindsey 312
  with S. Upchurch
Date:04 Apr 1981
Accession No:168576
Image:168576.jpg

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